Shohei Ohtani was scratched from the Los Angeles Angels' starting lineup for Monday's game against the Baltimore Orioles because of right oblique tightness, the club said.
The two-way star cut short a rare session of on-field batting practice at Angel Stadium after he hit a ball over the fence and then on the next pitch winced when he checked a swing at a low ball.
The club's announcement came an hour before the game started. Ohtani was going to bat second.
Ohtani has been limited to designated hitter duties after being diagnosed with a tear in the ulnar collateral ligament in his right elbow on Aug. 23.