Pittsburgh Pirates righthander A.J. Burnett was scheduled to fly back to Pittsburgh on Wednesday night after he was struck in the eye by a ball during a bunting drill.
BUrnett, who was acquired from the New York Yankees in a trade earlier this month, was hit in the right temple as he attempted to bunt.
He was attended to by a team trainer before walking off the field holding a towel to his face.
Burnett did not speak to reporters and the team did not release any details of the veteran's injury.
Pittsburgh shipped a pair of Class A prospects to the Yankees in exchange for Burnett. New York also agreed to pick up $20 million of the remaining $33 million on Burnett's contract.
The 35-year-old Burnett posted an 11-11 record with a 5.15 ERA in 32 starts last season. He has recorded a 34-35 mark with a 4.79 ERA since signing a five-year, $82.5 million contract prior to the 2009 campaign.