Drafted in the 5th round (168th overall) by the San Francisco Giants in 2010 (signed for $185,000).
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Hembree has one of the draft's freshest power arms, having pitched fewer than 30 innings in three years. He also didn't pitch during his senior season in high school, due to a torn anterior cruciate ligament in his knee that he injured during prep football. Hembree made only one appearance at South Carolina, recording one out, then went to Spartanburg Methodist JC and transferred to College of Charleston, getting irregular work as the Cougars' closer. Scouts weren't happy with how he was used, though it's hard to argue with Charleston's 40-win season and regional berth. Hembree displayed mid- to upper 90s velocity, regularly hitting 98 mph and sitting in the 94-96 mph range. He has a long, lean pitcher's body at 6-foot-4, 195 pounds with wide shoulders, as well as a clean arm action. His secondary pitch is a slider that flashes mid-80s power potential. Much of Hembree's game is raw. His fastball tends to straighten out at higher velocity, and he has proved hittable due to spotty command. He doesn't have a pitch to combat lefthanded hitters, though some think his power repertoire and big hands make him an excellent future candidate for a split-finger fastball. Hembree's modest numbers and inexperience may slot him behind college closers such as Texas Tech's Chad Bettis or Florida's Kevin Chapman, but his pure arm and velocity are as good as the college ranks have to offer this season.
Top Rankings
Organization Prospect Rankings
Expected to be the club's closer of the future, Hembree wasn't ready for any relief role when the Giants badly needed help in May and June. Instead, he gave up 17 runs in 21 innings to Triple-A Pacific Coast League hitters. Though Hembree had recovered from the forearm strain that bothered him a year earlier, his lack of a dependable secondary pitch kept him at Fresno. He improved in the second half and kept it up into September, when he was unscored upon in nine big league appearances. A seldom-used college closer, Hembree vaulted up the prospect rankings because of his 98 mph fastball and power slider. He pitched more effectively in the 92-94 mph range in 2013, but has addressed past issues of wildness within the strike zone and shows more ability to dial back and locate. Hembree's slider was the key to his second-half turnaround. He developed the ability to shape it to steal strikes or sweep it when he wants a strikeout. Hembree saved 31 games for Fresno and will be given every opportunity to win a job in the Giants bullpen this spring as a set-up man. Even if he never gets back that 98 mph heat, his size and stuff compare well with former Giant Bob Howry, who had a long career in late relief.
Hembree lasted five rounds in the 2010 draft because he was a seldom-used college closer who didn't pitch as a high school senior while rehabbing a knee injury sustained in a football game. He breezed through his first three stops in pro ball before hitting a speed bump at Triple-A Fresno in 2012. A strained flexor tendon cost him five weeks, though he rebounded with a solid Arizona Fall League. With a fastball that approaches triple digits and the makings of a power slider, Hembree has closer stuff. He works at 93-96 mph with quality life when fully healthy, and he got back up to 95 in the AFL. He's doing a better job of maintaining his arm slot, which has helped the consistency of his 82-85 mph slider. His changeup probably won't become anything more than a show-me pitch, but he has made some progress with it. If anything, Hembree's injury and diminished velocity showed him the importance of having dependable offspeed stuff. While he can be overpowering, he also has bouts of wildness and gets into trouble with walks. The Giants could use Hembree sooner rather than later in their bullpen, which is light on hard throwers from the right side. He'll probably begin 2013 in Triple-A, but a solid spring would put him in line for a callup the first time San Francisco finds itself short an arm.
Hembree lasted until the fifth round of the 2010 draft because he didn't have much of a track record with scouts. He missed his senior year of high school after tearing up his knee playing football and pitched just 29 innings in two seasons of NCAA Division I baseball (South Carolina in 2008, College of Charleston in 2010) sandwiched around one at Spartanburg Methodist (S.C.) JC. In his first full pro season, he led the minors with 38 saves and reached Double-A. Hembree consistently works at 93-96 mph without having to muscle the ball. His fastball has explosive movement and he likes to work up the ladder, overpowering hitters at the letters. His slider has the makings of a plus pitch, while his changeup is a work in progress. Hembree won't get away with as many mistakes up in the zone against big leaguers, and he'll have to throw more strikes. He maintains his composure on the mound, a good attribute for a future closer. Hembree's stuff and cool under pressure demeanor have prompted the Giants to compare him to Brian Wilson. He has an easygoing personality and probably wears socks that actually match, so he's no Wilson clone, but he's likely to be pitching in meaningful, late-inning situations in the near future. Hembree will open 2012 in the minors but could be setting up Wilson by the all-star break.
Hembree was a draft curiosity as a seldom-used closer at the College of Charleston, with rumors in the scouting community that he could hit 100 mph. But he also walked 18 in 29 innings and he didn't have much track record, and he missed his senior year of high school with a torn ACL he sustained in a football game. He pitched only one inning as a college freshman at South Carolina before getting in a year of work in junior college and then at Charleston. Hembree signed relatively quickly and the Giants got right to work, giving him a simple guide move with his front arm that allowed him to repeat his otherwise clean delivery and stay on line to the plate. To call Hembree a quick learner would be an understatement. In 11 relief innings in the Arizona League, he struck out 22 and didn't walk a batter while working from 94-99 mph with his fastball and mixing in a power slider. San Francisco forced him to throw 90 percent changeups in instructional league and it wasn't deemed a wasted effort. He doesn't have a pitch to combat lefthanders, though some think his power repertoire and big hands make him an excellent future candidate for a splitter. Hembree profiles as a premium closer or set-up man, with the potential to move fast as a reliever.
Minor League Top Prospects
The Giants love power arms out of the bullpen and may have found another one in the fifth round of the 2010 draft in Hembree. Despite being 21, he has a fresh arm after missing his senior year in high school due to a knee injury and pitching irregularly at three colleges over three years. He finished his collegiate career as a closer at the College of Charleston. Hembree looked anything but inexperienced after joining the Giants in late July, drawing raves for his overpowering 93-98 mph fastball and power slider. He struck out 22 in 11 innings while not issuing a walk. Hembree needs to improve his fastball command and life, and rely more on his slider. While he didn't use it in the AZL, he has the makings of an effective changeup and will work on it during instructional league.
Best Tools List
Rated Best Fastball in the San Francisco Giants in 2012
Rated Best Reliever in the California League in 2011
Scouting Reports
Background: Hembree lasted five rounds in the 2010 draft because he was a seldom-used college closer who didn't pitch as a high school senior while rehabbing a knee injury sustained in a football game. He breezed through his first three stops in pro ball before hitting a speed bump in 2012. A strained flexor tendon cost him five weeks, though he rebounded with a solid Arizona Fall League.
Scouting Report: With a fastball that approaches triple digits and the makings of a power slider, Hembree has closer stuff. He works at 93-96 mph with quality life when fully healthy and got back up to 95 in the AFL. He's doing a better job of maintaining his arm slot, which has helped the consistency of his 82-85 mph slider. His changeup probably won't become anything more than a show-me pitch, but he has made some progress with it. If anything, Hembree's injury and diminished velocity showed him the importance of having dependable offspeed stuff. While he can be overpowering, he also has bouts of wildness.
The Future: The Giants could use Hembree sooner rather than later in their bullpen, which is light on hard throwers from the right side. He'll probably begin 2013 in Triple-A, but a solid spring would put him in line for a callup the first time San Francisco finds itself short an arm.
Background: Hembree lasted until the fifth round of the 2010 draft because he didn't have much of a track record. He missed his senior year of high school after tearing up his knee playing football and pitched just 29 innings in two seasons of NCAA Division I baseball (South Carolina in 2008, College of Charleston in 2010) sandwiched around one at Spartanburg Methodist (S.C.) JC. In his first full pro season, he led the minors with 38 saves. Scouting Report: Hembree consistently works at 93-96 mph without having to muscle the ball. His fastball has explosive movement and he likes to work up the ladder, overpowering hitters at the letters. His slider has the makings of a plus pitch, while his changeup is a work in progress. Hembree won't get away with as many mistakes up in the zone against big leaguers, and he'll have to throw more strikes. He maintains his composure on the mound, a good attribute for a future closer. The Future: Hembree's stuff and confidence have prompted the Giants to compare him to Brian Wilson. He has an easygoing personality and probably wears socks that actually match, so he's no Wilson clone, but he's likely to be pitching in meaningful, late-inning situations in the near future. Hemree could be setting up Wilson by the all-star break.
Career Transactions
Tacoma Rainiers released RHP Heath Hembree.
Tacoma Rainiers activated RHP Heath Hembree from the 60-day injured list.
Tacoma Rainiers sent RHP Heath Hembree on a rehab assignment to Everett AquaSox.
Tacoma Rainiers sent RHP Heath Hembree on a rehab assignment to Everett AquaSox.
Tacoma Rainiers sent RHP Heath Hembree on a rehab assignment to Everett AquaSox.
Tacoma Rainiers sent RHP Heath Hembree on a rehab assignment to Everett AquaSox.
Tacoma Rainiers sent RHP Heath Hembree on a rehab assignment to ACL Mariners.
Toledo Mud Hens released RHP Heath Hembree.
Toledo Mud Hens activated RHP Heath Hembree from the 7-day injured list.
Toledo Mud Hens placed RHP Heath Hembree on the 7-day injured list.
Detroit Tigers signed free agent RHP Heath Hembree to a minor league contract.
Toledo Mud Hens activated RHP Heath Hembree.
RHP Heath Hembree assigned to Toledo Mud Hens.
RHP Heath Hembree elected free agency.
Tampa Bay Rays designated RHP Heath Hembree for assignment.
Tampa Bay Rays selected the contract of RHP Heath Hembree from Durham Bulls.
Tampa Bay Rays selected the contract of RHP Heath Hembree from Durham Bulls.
RHP Heath Hembree assigned to Durham Bulls.
RHP Heath Hembree roster status changed by Tampa Bay Rays.
Tampa Bay Rays signed free agent RHP Heath Hembree to a minor league contract and invited him to spring training.
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