Adam Eaton left Sunday's White Sox-Seattle Mariners series finale early with a bruised right forearm.
The White Sox outfielder was hit by a pitch to lead off the fourth inning in his second time at the plate. X-rays were negative.
"He got hit in the forearm and he couldn't hold on to the bat," manager Robin Ventura said after the game. "As of right now, he's just day to day."
Eaton remained in the game to field in the top of the fifth, but was replaced by J.B. Shuck for his next at-bat in the bottom of the inning.