11 games, 10 starts, 59.0 IP, 4-2 W-L, 3.97 ERA, 2.3 BB/9, 10.7 K/9
The background
The one-time primary return in the Jimmy Rollins trade, Eflin had an inconsistent beginning to his major league career. He showed signs of promise in 2018, but followed it up with a disjointed 2019 season.
Pitching coach Chris Young attempted to change Eflin’s sinkerball-focused repertoire to one where he primarily threw high fastballs. While early returns on the new approach were good, Eflin faltered badly in the middle of the season, complaining of a “heavy” feeling.
Zach Eflin said his body has been feeling “heavy” recently.