Zac Gallen has a hairline fracture in his right forearm, casting more doubt on his ability to open the season on the active roster for the Arizona Diamondbacks.
Gallen, 25, hurt his forearm after getting jammed while taking batting practice nearly two weeks ago.
He was practicing his hitting because the National League will switch back to pitchers batting for the 2021 season after adopting the designated hitter rule during 2020's shortened schedule.
"It's definitely frustrating considering I'm kind of an advocate for the DH," Gallen said. "I get paid to pitch, that's kind of how I look at it. It comes along with the job. I play in the National League -- you have to hit, you have to bunt, you have to do those certain things."