Red Sox second baseman Dustin Pedroia left Monday night's game in Baltimore in the fourth inning after hitting a foul ball that bounced off the plate and then hit him in the face.
Pedroia suffered a nasal contusion and is day-to-day, the team announced after the Red Sox won 10-8 in 11 innings.
"He's sore. He was bleeding pretty good," manager John Farrell said. "And that got him flush, right square in the nose. By the end of the game, he was back in the dugout."
Farrell said Monday if there are lingering issues, Pedroia could get a CT scan.
Pedroia wasn't in Tuesday's lineup.
On Monday, Pedroia was replaced by Brock Holt, who lined a double to right-center field off Baltimore's Dylan Bundy and later scored on a Mookie Betts to cut the Orioles' lead to 5-1.
Pedroia, who is hitting .303 with seven home runs and 58 RBIs, dabbed blood from his face with a towel as he left the field.
He has spent time on the disabled list this season with knee inflammation.
ESPN's Eddie Matz contributed to this report.