• Full name Alejandro Antonio Rosario
  • Born 01/06/2002 in Miami, FL
  • Profile Ht.: 6'1" / Wt.: 184 / Bats: R / Throws: R
  • School Miami
  • Drafted in the 5th round (144th overall) by the Texas Rangers in 2023 (signed for $437,900).
    View Draft Report
    School: Miami Source: 4YR

    Commit/Drafted: Never Drafted
    Age At Draft: 21.5
    Rosario was an acclaimed prospect out of high school who ranked No. 60 in the 2020 class, but made it to campus at Miami where he has shown impressive pure stuff but struggled to get his results to match. In mostly a starting role, Rosario has posted a 6.47 ERA over 200.1 innings in his three seasons with the Hurricanes, including a 21% strikeout rate and a 9.9% walk rate. Listed at 6-foot-1, 182 pounds, Rosario is an undersized righthander who pitches from the stretch and works with a solid three-pitch mix. He averaged 95-96 mph with his fastball in 2023, and the pitch has been up to 100 mph with plenty of arm-side run and a bit of sink. Despite the velocity and movement, Rosario’s fastball has always played down from its velocity, potentially because of a lack of deception or below-average extension—or both. His secondaries offer a bit more promise, though he threw his slider and changeup less than a third of the time combined in 2023. The slider is a low-80s pitch with high spin rates in the 2,600 rpm range and generated a 30% miss rate, while his changeup is a firm, upper-80s offering that missed bats at a 48% rate. Opposing batters managed a .764 OPS against his secondaries compared to an .881 OPS against his fastball in 2023. Rosario has been home run prone throughout his college career, despite generally being a groundball pitcher, and a 10.7 hit-per-nine rate means he’ll need to either take a step forward with his command, tweak his pitch usage or try and change his fastball shape in pro ball. He’s an intriguing pro development prospect with performance that has never quite matched the natural arm talent.

Top Rankings

Organization Prospect Rankings

Draft Prospects

Top 100 Rankings

Career Transactions

  • Frisco RoughRiders transferred RHP Alejandro Rosario to the Development List.
  • RHP Alejandro Rosario assigned to Frisco RoughRiders from Hickory Crawdads.
  • RHP Alejandro Rosario assigned to Hickory Crawdads from Down East Wood Ducks.
  • RHP Alejandro Rosario assigned to Down East Wood Ducks from ACL Rangers.

Download our app

Read the newest magazine issue right on your phone