2024 MLB Debuts & Signing Scouts For All 255 Players
Image credit: Jackson Merrill (Photo via Getty Images)
Even as spring training winds down in Arizona and Florida, the Seoul Series between the Dodgers and the Padres marks the beginning of the 2024 MLB season.
With the new year come new big leaguers, including a pair of Padres in the first game of the season. Here, Baseball America will track every MLB debut throughout the course of the season with a spot also to call out each player’s signing scout.
Check back for regular updates.
2024 Top MLB Rookies
Curious who could end making their MLB debut this season? Baseball America ranked the Top 20 rookies entering 2024. You can find that here.
2024 Top 30 MLB Prospects
You can also find Baseball America’s Top 30 Prospects for every MLB organization here. Each ranking includes a new scouting report and tool grades. Keep an eye on the 30s as we update them throughout the year. We also track all signing scouts for Top 30 players in our annual Prospect Handbook, which you can find here.
| Player, Pos. | Debut | Team | Signing Scout(s) |
| Graham Pauley, 3B | March 20 | Padres | Jake Koenig |
| Jackson Merrill, CF | March 20 | Padres | Danny Sader |
| Yuki Matsui, LHP | March 20 | Padres | Keiji Uezono |
| Stephen Kolek*, RHP | March 21 | Padres | Clint Bowers (Dodgers) |
| Yoshinobu Yamamoto, RHP | March 21 | Dodgers | Galen Carr |
| Anthony Molina*, RHP | March 28 | Rockies | William Bergolla (Rays) |
| Blaze Alexander, SS | March 28 | D-backs | Luke Wrenn |
| Colt Keith, 2B | March 28 | Tigers | Mike Smith |
| Darell Hernaiz, 3B | March 28 | Athletics | John Gillette (Orioles) |
| Erik Miller, LHP | March 28 | Giants | Joey Davis (Phillies) |
| Jung-Hoo Lee, CF | March 28 | Giants | Evan Hsueh |
| Victor Scott II, CF | March 28 | Cardinals | TC Calhoun |
| Wyatt Langford, LF | March 28 | Rangers | John Wiedenbauer |
| Clayton Beeter, RHP | March 29 | Yankees | Clint Bowers (Dodgers) |
| Jackson Chourio, CF | March 29 | Brewers | Fernando Veracierto/Luis Perez |
| Landen Roupp, RHP | March 29 | Giants | Mark O’Sullivan |
| Mitch Spence*, RHP | March 29 | Athletics | Billy Godwin (Yankees) |
| Austin Martin, OF | March 30 | Twins | Nate Murrie (Blue Jays) |
| Ben Brown, RHP | March 30 | Cubs | Alex Agostino (Phillies) |
| Cade Smith, RHP | March 30 | Guardians | Kyle Bamberger |
| Jared Jones, RHP | March 30 | Pirates | Brian Tracy |
| Jordan Leasure, RHP | March 30 | White Sox | Wes Sargent (Dodgers) |
| Justin Slaten*, RHP | March 30 | Red Sox | Levi Lacey (Rangers) |
| Kyle McCann, C | March 30 | Athletics | Jemel Spearman |
| Nasim Nunez*, SS | March 30 | Nationals | Christian Castorri (Marlins) |
| Oliver Dunn, 3B | March 30 | Brewers | Mike Thurman (Yankees) |
| Trey Lipscomb, 3B | March 30 | Nationals | Brian Cleary |
| Austin Shenton, 1B | March 31 | Rays | Dan Rovetto (Mariners) |
| Kai-Wei Teng, RHP | March 31 | Giants | Cary Broder (Twins) |
| Matt Sauer*, RHP | March 31 | Royals | Bobby DeJardin (Yankees) |
| Jorge Barrosa, CF | April 1 | D-backs | Alfonso Mora/Cesar Geronimo Jr. |
| Nick Avila, RHP | April 1 | Giants | Brad Cameron |
| Shota Imanaga, LHP | April 1 | Cubs | Shinsuke Yokote |
| Ryan Fernandez*, RHP | April 3 | Cardinals | Tom Kotchman (Red Sox) |
| Justin Foscue, 2B | April 5 | Rangers | Brian Morrison |
| Pedro Pages, C | April 7 | Cardinals | Mike DiBiase |
| Blair Henley, RHP | April 8 | Astros | Kris Gross |
| Josh Maciejewski, LHP | April 8 | Yankees | Billy Godwin |
| Wenceel Perez, OF | April 8 | Tigers | Ramon Perez/Carlos Santana |
| Davis Wendzel, 3B | April 9 | Rangers | Josh Simpson |
| Dedniel Nuñez, RHP | April 9 | Mets | Fernando Encarnacion |
| Jackson Holliday, 2B | April 10 | Orioles | Ken Guthrie |
| Spencer Arrighetti, RHP | April 10 | Astros | Landon Townsley |
| Tyler Jay, LHP | April 11 | Mets | Jeff Pohl (Twins) |
| Max Schuemann, UT | April 12 | Athletics | Rich Sparks |
| Yariel Rodriguez, RHP | April 13 | Blue Jays | Ryan Mittleman/Hideaki Sato |
| Cole Winn, RHP | April 14 | Rangers | Steve Flores |
| Jonatan Clase, LF | April 15 | Mariners | Audo Vicente |
| Mitchell Parker, LHP | April 15 | Nationals | Jimmy Gonzales |
| Nick Nastrini, RHP | April 15 | White Sox | Dennis Moeller (Dodgers) |
| Ricky Vanasco, RHP | April 15 | Dodgers | Brett Campbell (Rangers) |
| Andy Pages, RF | April 16 | Dodgers | Luis Marquez/Roman Barinas/Manelik Pimentel |
| David Bañuelos, C | April 16 | Orioles | Gary Patchett (Mariners) |
| Forrest Whitley, RHP | April 16 | Astros | Noel Gonzales-Luna |
| Jair Camargo, C | April 16 | Twins | Francisco Cartaya (Dodgers) |
| Jhonny Pereda, C | April 17 | Marlins | Hector Ortega (Cubs) |
| Jonathan Cannon, RHP | April 17 | White Sox | Kevin Burrell |
| Landon Knack, RHP | April 17 | Dodgers | Marty Lamb |
| Jack Leiter, RHP | April 18 | Rangers | Derrick Tucker |
| Cam Booser, LHP | April 19 | Red Sox | Trevor Brown (Twins) |
| Roddery Muñoz, RHP | April 20 | Marlins | Jonathan Cruz (Braves) |
| Tobias Myers, RHP | April 23 | Brewers | Kelvin Colon (Orioles) |
| Addison Barger, LF | April 24 | Blue Jays | Matt Bishoff |
| Anthony Maldonado, RHP | April 26 | Marlins | Hank LaRue |
| Emmanuel Ramirez, RHP | April 28 | Marlins | Emenegildo Diaz/Felix Feliz (Padres) |
| Leo Rivas, SS | April 28 | Mariners | Carlos Ramirez/Lebi Ochoa (Angels) |
| Will Klein, RHP | April 28 | Royals | Scott Melvin |
| Zac Kristofak, RHP | April 28 | Angels | Todd Hogan |
| Joey Loperfido, OF | April 30 | Astros | Andrew Johnson |
| Jordan Beck, OF | April 30 | Rockies | Scott Corman |
| Tyler Black, 1B | April 30 | Brewers | Pete Vukovich Jr. |
| Blake Walston, LHP | May 1 | D-backs | George Swain |
| Naoyuki Uwasawa, RHP | May 2 | Red Sox | Tateki Uchibori (Rays) |
| Brett Harris, 3B | May 3 | Athletics | James Coffman |
| Bryan Ramos, 3B | May 4 | White Sox | Ruddy Moreta/Doug Laumann/Marco Paddy |
| Christian Scott, RHP | May 4 | Mets | Jon Updike |
| Randy Rodríguez, RHP | May 4 | Giants | Gabriel Elias |
| Eli Villalobos, RHP | May 5 | Marlins | Scott Goldby |
| Kyle Manzardo, 1B | May 6 | Guardians | James Bonnici (Rays) |
| Mason Black, RHP | May 6 | Giants | John DiCarlo |
| Chris Roycroft, RHP | May 7 | Cardinals | John Vuch |
| Tyler Ferguson, RHP | May 7 | Athletics | Jay Heafner (Rangers) |
| Robert Gasser, LHP | May 10 | Brewers | Kevin Ham (Padres) |
| Paul Skenes, RHP | May 11 | Pirates | Wayne Mathis |
| Jacob Hurtubise, OF | May 13 | Reds | Lee Seras |
| Chris Roller, OF | May 15 | Brewers | Clint Bowers (Dodgers) |
| Johnathan Rodríguez, OF | May 21 | Guardians | Juan Alvarez |
| Luis Vazquez, SS | May 22 | Cubs | Edwards Guzman |
| Porter Hodge, RHP | May 22 | Cubs | Steve McFarland |
| Zach DeLoach, OF | May 22 | White Sox | Derek Miller (Mariners) |
| Gerson Garabito, RHP | May 26 | Rangers | Edis Perez (Royals) |
| Jack O’Loughlin, LHP | May 26 | Athletics | Kevin Hooker/Glenn Williams (Tigers) |
| Ryan Bliss, 2B | May 27 | Mariners | Kerry Jenkins (D-backs) |
| Trenton Brooks | May 28 | Giants | Don Lyle (Guardians) |
| Grant Koch, C | May 29 | Pirates | Matt Bimeal |
| Keider Montero, RHP | May 29 | Tigers | Alejandro Rodriguez/Delvis Pacheco |
| Spencer Schwellenbach, RHP | May 29 | Braves | JD French |
| Brady Basso, LHP | May 31 | Athletics | Christopher Reilly |
| Justin Sterner, RHP | May 31 | Rays | Scott Stanley (Marlins) |
| Ryan Loutos, RHP | June 1 | Cardinals | Julia Prusaczyk |
| Daniel Schneemann, SS | June 2 | Guardians | Ryan Perry |
| Jamie Westbrook, 2B | June 2 | Red Sox | Doyle Wilson (D-backs) |
| Angel Chivilli, RHP | June 3 | Rockies | Rolando Fernandez/Manuel Cabrera |
| Connor Norby, 2B | June 3 | Orioles | Quincy Boyd |
| Justyn-Henry Malloy, OF | June 3 | Tigers | Chris Lionetti (Braves) |
| Adam Mazur, RHP | June 4 | Padres | Troy Hoerner |
| Blake Dunn, OF | June 4 | Reds | Tyler Gibbons |
| DJ Herz, LHP | June 4 | Nationals | Billy Swoope (Cubs) |
| Duke Ellis, OF | June 4 | White Sox | Joe Butler |
| Cade Povich, LHP | June 6 | Orioles | Joe Bisensius (Twins) |
| Greg Jones, OF | June 6 | Rockies | Joe Hastings (Rays) |
| James Meeker, RHP | June 7 | Brewers | Bryan Gale |
| Adael Amador, 2B | June 9 | Rockies | Rolando Fernandez/Martin Cabrera |
| Hurston Waldrep, RHP | June 9 | Braves | Jon Bunnell |
| Tyler Locklear, 1B | June 9 | Mariners | Jackson Laumann |
| Michel Otañez, RHP | June 10 | Athletics | Marciano Alvarez (Mets) |
| Carlos Rodriguez, RHP | June 11 | Brewers | Mike Burns |
| Drew Thorpe, RHP | June 11 | White Sox | Tyler Robertson (Yankees) |
| Grant Holmes, RHP | June 16 | Braves | Lon Joyce (Dodgers) |
| Spencer Bivens, RHP | June 16 | Giants | Farhan Zaidi |
| Brandon Eisert, LHP | June 17 | Blue Jays | Ryan Fox |
| Ben Rice, 1B | June 18 | Yankees | Matt Hyde |
| Michael Petersen, RHP | June 18 | Dodgers | Josh Belovsky (Brewers) |
| Adam Kloffenstein, RHP | June 20 | Cardinals | Brian Johnston (Blue Jays) |
| Bradley Blalock, RHP | June 20 | Brewers | Brian Moehler (Red Sox) |
| Jake Bloss, RHP | June 21 | Astros | Bobby St. Pierre |
| Orelvis Martinez, 2B | June 21 | Blue Jays | Alexis de la Cruz/Sandy Rosario |
| Angel Martínez, OF | June 22 | Guardians | Jhonathan Leyba |
| Armando Alvarez, 3B | June 22 | Athletics | Mike Gibbons (Yankees) |
| Bryan King, LHP | June 23 | Astros | Matt Sherman (Cubs) |
| Luis Contreras, RHP | June 23 | Astros | Rafael Jimenez/Hector Ortega (Cubs) |
| Steward Berroa, OF | June 23 | Blue Jays | Sandy Rosario/Lorenzo Perez |
| CJ Alexander, 3B | June 24 | Royals | Justin Clark (Braves) |
| Levi Jordan, OF | June 24 | Reds | Greg Hopkins (Cubs) |
| Michael Mercado, RHP | June 24 | Phillies | Jaime Jones (Rays) |
| Raymond Burgos, LHP | June 24 | Giants | Juan Alvarez (Guardians) |
| Yosver Zulueta, RHP | June 25 | Reds | Andrew Tinnish (Blue Jays) |
| Hayden Birdsong, RHP | June 26 | Giants | Tom Shafer |
| Jhonkensy Noel, OF | June 26 | Guardians | Domingo Toribio/Jhonathan Leyba |
| Valente Bellozo, RHP | June 26 | Marlins | Oz Ocampo/Raul Lopez (Astros) |
| David Festa, RHP | June 27 | Twins | John Wilson |
| Aaron Schunk, 3B | June 29 | Rockies | Sean Gamble |
| Bailey Horn, LHP | June 29 | Red Sox | Warren Hughes (White Sox) |
| Gordon Graceffo, RHP | June 29 | Cardinals | Jim Negrych |
| James Wood, OF | July 1 | Nationals | John Martin (Padres) |
| Brooks Lee, 3B | July 3 | Twins | Brian Tripp |
| Cristian Mena, RHP | July 3 | D-backs | Marino De Leon (White Sox) |
| Leo Jimenez, SS | July 4 | Blue Jays | Alex Zapata/Sandy Rosario |
| Walter Pennington, LHP | July 5 | Royals | Matt Price |
| Justin Wrobleski, LHP | July 7 | Dodgers | Heath Holliday |
| Tanner Gordon, RHP | July 7 | Rockies | Kevin Barry (Braves) |
| Tyler Phillips, RHP | July 7 | Phillies | Takeshi Sakurayama (Rangers) |
| Eric Orze, RHP | July 8 | Mets | Jet Butler |
| Rece Hinds, OF | July 8 | Reds | Sean Buckley |
| Yilber Diaz, RHP | July 8 | D-backs | Cesar Geronimo Jr./Ronald Salazar |
| Hunter Bigge, RHP | July 9 | Cubs | Matt Sherman (Cubs) |
| Daniel Robert, RHP | July 10 | Rangers | Brian Morrison |
| Jack Kochanowicz, RHP | July 11 | Angels | Kennard Jones |
| Sean Reynolds, RHP | July 14 | Padres | Tim McDonnell (Marlins) |
| Brooks Baldwin, 2B | July 19 | White Sox | John Stott |
| Jacob Wilson, SS | July 19 | Athletics | Jeff Urlaub |
| Carlos Narvaez, C | July 20 | Yankees | Ricardo Finol/Jose Gavidia/Borman Landaeta |
| Ignacio Alvarez Jr., 2B | July 22 | Braves | Ryan Dobson |
| River Ryan, RHP | July 22 | Dodgers | Jake Koenig/Nick Brannon (Padres) |
| Chayce McDermott, RHP | July 24 | Orioles | Scott Oberhelman (Astros) |
| Joey Cantillo, LHP | July 28 | Guardians | Justin Baughman (Padres) |
| Bryan Sammons, LHP | July 29 | Tigers | Seth Moir (Twins) |
| Dillon Dingler, C | July 29 | Tigers | Austin Cousino |
| Austin Kitchen, LHP | July 30 | Marlins | Independent Washington League (Rockies) |
| Fraser Ellard, LHP | July 30 | White Sox | John Stott |
| Will Warren, RHP | July 30 | Yankees | Mike Leuzinger |
| Eric Yang, C | July 31 | Reds | Jimmy Moran |
| Hunter Feduccia, C | July 31 | Dodgers | Benny Latino |
| Luis De Los Santos, 3B | July 31 | Blue Jays | Ismael Cruz/Sandy Rosario/Alexis De La Cruz |
| Michael McGreevy, RHP | July 31 | Cardinals | Michael Garciaparra |
| Coby Mayo, 3B | Aug 2 | Orioles | Brandon Verley |
| Kameron Misner, OF | Aug 2 | Rays | Joe Dunigan (Marlins) |
| Nick Sogard, 2B | Aug 2 | Red Sox | Greg Whitworth (Rays) |
| Pedro Leon, OF | Aug 3 | Astros | Charlie Gonzalez |
| Brant Hurter, LHP | Aug 4 | Tigers | Bryson Barber |
| Connor Gillispie, RHP | Aug 4 | Guardians | Rich Morales (Orioles) |
| Ky Bush, LHP | Aug 5 | White Sox | Scott Richardson (Angels) |
| Zach Dezenzo, 3B | Aug 6 | Astros | Scott Oberhelman |
| Adrian Del Castillo, C | Aug 7 | D-backs | Eric Cruz |
| Parker Dunshee, RHP | Aug 8 | Braves | Neil Avent (Athletics) |
| Max Lazar, RHP | Aug 10 | Phillies | Charlie Sullivan (Brewers) |
| Troy Taylor, RHP | Aug 11 | Mariners | Ryan Holmes |
| Mickey Gasper, 1B | Aug 12 | Red Sox | Matt Hyde (Yankees) |
| Will Wagner, 2B | Aug 12 | Blue Jays | Andrew Johnson (Astros) |
| Andres Chaparro, 1B | Aug 13 | Nationals | Gustavo Campero (Yankees) |
| Orlando Ribalta, RHP | Aug 13 | Nationals | Alex Morales |
| Zebby Matthews, RHP | Aug 13 | Twins | Ty Dawson |
| Grant McCray, OF | Aug 14 | Giants | Jim Gabella |
| Chase Shugart, RHP | Aug 15 | Red Sox | Brandon Agamennone |
| Jace Jung, 3B | Aug 16 | Tigers | Steve Taylor |
| Niko Kavadas, 1B | Aug 16 | Angels | Alonzo Wright (Red Sox) |
| Trey Sweeney, SS | Aug 16 | Tigers | Steve Lemke (Yankees) |
| Drew Romo, C | Aug 17 | Rockies | Jeff Edwards |
| Grant Holman, RHP | Aug 17 | Athletics | Troy Stewart |
| Shay Whitcomb, 3B | Aug 17 | Astros | Ryan Leake |
| Julian Aguiar, RHP | Aug 19 | Reds | Mike Misuraca |
| J.T. Ginn, RHP | Aug 21 | Athletics | Jet Butler (Mets) |
| Jack Neely, RHP | Aug 21 | Cubs | Mike Gibbons (Yankees) |
| Jeff Criswell, RHP | Aug 21 | Rockies | Rich Sparks (Athletics) |
| Luis Peralta, LHP | Aug 24 | Rockies | Juan Mercado (Pirates) |
| Ryan Zeferjahn, RHP | Aug 25 | Angels | Lane Decker (Red Sox) |
| Tyler Gentry, OF | Aug 25 | Royals | Travis Ezi |
| Brady Feigl, LHP | Aug 26 | Pirates | Gene Kerns (Braves) |
| Dylan Crews, OF | Aug 26 | Nationals | Kevin Ham |
| Griffin Conine, OF | Aug 26 | Marlins | Jason Beverlin (Blue Jays) |
| Ty Madden, RHP | Aug 26 | Tigers | George Schaefer |
| Jonathan Bermudez, LHP | Aug 27 | Marlins | Evan Brannon (Astros) |
| Ryan Miller, RHP | Aug 27 | Angels | George Swain (D-backs) |
| Evan Kravetz, LHP | Aug 28 | Reds | Nick Christiani |
| Rhett Lowder, RHP | Aug 30 | Reds | Charlie Aliano |
| Sam Aldegheri, LHP | Aug 30 | Angels | Claudio Scerrato (Phillies) |
| Seth Halvorsen, RHP | Aug 30 | Rockies | Scott Corman |
| Ben Casparius, RHP | Aug 31 | Dodgers | John Pyle |
| Caden Dana, RHP | Sep 1 | Angels | Drew Dominguez |
| Darren Baker, 2B | Sep 1 | Nationals | Bryan Byrne |
| Zach Brzykcy, RHP | Sep 1 | Nationals | Bobby Myrick |
| Jairo Iriarte, RHP | Sep 3 | White Sox | Trevor Schumm/Luis Prieto (Padres) |
| Logan Driscoll, C | Sep 3 | Rays | Daniel Sader (Padres) |
| Michael Helman, OF | Sep 3 | Twins | Greg Runser |
| Erik Sabrowski, LHP | Sep 4 | Guardians | Stephen Moritz/Eddie Ciafardini (Padres) |
| DaShawn Keirsey, OF | Sep 5 | Twins | Andrew Ayers |
| Mason Montgomery, LHP | Sep 5 | Rays | Pat Murphy |
| Sandro Fabian, OF | Sep 6 | Rangers | Pablo Guerrero/Felix Peguero/Jonathan Bautista (Giants) |
| Bryce Teodosio, OF | Sep 7 | Angels | Chris McAlpin |
| Jaden Hill, RHP | Sep 7 | Rockies | Zack Zulli |
| Javier Sanoja, 2B | Sep 7 | Marlins | Fernando Seguignol |
| Billy Cook, OF | Sep 8 | Pirates | Scott Walter (Orioles) |
| Isaac Collins, OF | Sep 8 | Brewers | Brett Baldwin (Rockies) |
| Lake Bachar, RHP | Sep 8 | Marlins | Troy Hoerner (Padres) |
| Luis Guerrero, RHP | Sep 8 | Red Sox | Dante Ricciardi |
| Richard Fitts, RHP | Sep 8 | Red Sox | Chuck Bartlett/Mike Wagner (Yankees) |
| Seth Johnson, RHP | Sep 8 | Phillies | Joe Hastings (Rays) |
| Eric Wagaman, 3B | Sep 10 | Angels | Dave Keith (Yankees) |
| Sean Burke, RHP | Sep 10 | White Sox | John Stott |
| Thomas Saggese, 2B | Sep 10 | Cardinals | Steve Flores (Rangers) |
| Andrew Walters, RHP | Sep 12 | Guardians | Gustavo Benzan |
| Kumar Rocker, RHP | Sep 12 | Rangers | Tyler Carroll |
| Brandon Lockridge, OF | Sep 13 | Padres | Mike Wagner (Yankees) |
| Luisangel Acuña, SS | Sep 14 | Mets | Rafic Saab (Rangers) |
| Zach Penrod, LHP | Sep 14 | Red Sox | Rick Schroeder |
| Gustavo Campero, OF | Sep 15 | Angels | Cesar Suarez/Edgar Mateo (Yankees) |
| Nick Yorke, 2B | Sep 16 | Pirates | Josh Labandeira (Red Sox) |
| Jake Eder, LHP | Sep 17 | White Sox | J.T. Zink (Marlins) |
| Edgardo Henriquez, RHP | Sep 24 | Dodgers | Cristian Guzman |
| Jackson Jobe, RHP | Sep 25 | Tigers | Steve Taylor |
| Kevin Alcantara, OF | Sep 25 | Cubs | Edgar Mateo/Juan Piron (Yankees) |
| Dustin Harris, 1B | Sep 28 | Rangers | Trevor Schaeffer (Athletics) |
| Marc Church, RHP | Sep 28 | Rangers | Derrick Tucker |
| Mike Burrows, RHP | Sep 28 | Pirates | Eddie Charles |
| Trevor McDonald, RHP | Sep 28 | Giants | Jeff Wood |
