21. Jarrod Parker
Jarrod Parker, RHP, Arizona Diamondbacks – Jarrod Parker is also a former first-round draft pick. He was taken with the ninth overall selection by the Diamondbacks in 2007. He played his final game in 2013 at just 24-years-old. Parker put together two very good seasons for the A’s in 2012 and 2013. He went 13-8 in ’12 with a 3.47 ERA and 12-18 the following season with a 3.97 ERA. He started 61 games between the two campaigns. The A’s thought they had a future ace on their hands. He even started (and won) Game 3 of the 2013 American League Division Series. He was projected to be the Opening Day starter for the A’s heading into 2014 until he suffered a torn UCL. Parker underwent his second Tommy John surgery and 13 months later during a rehab outing in Triple-A, he suffered a broken elbow. He tried once more in 2016 and broke his elbow again. He officially retired prior to the 2018 season.
20. Jeremy Hellickson
Jeremy Hellickson, RHP, Tampa Bay Rays – Jeremy Hellickson was drafted in the fourth round of the 2005 draft by the Tampa Bay Devil Rays. He made his major league debut in 2010 and won the AL Rookie of the Year Award the following season. After a solid run with the Rays, he was traded to Arizona prior to 2015 and then to Philadelphia the following offseason. He posted a solid season in Philadelphia with a 3.71 ERA in 189 innings. He spent the past two seasons with the Nationals, posting a solid 3.45 ERA in 2018 in 91.1 innings. He dealt with a myriad of injuries during his time in Washington, and after receiving his World Series ring from the 2019 Nationals, he retired on Valentine’s Day of 2020.