ST. PETERSBURG, Fla. -- Baltimore Orioles first baseman Ryan Mountcastle was out of the starting lineup for Sunday's 4-1 loss at Tampa Bay one day after being hit on his left hand by pitched ball.
Manager Brandon Hyde said Mountcastle is day to day.
Mountcastle was struck by a pitch from former Oriole Jimmy Yacabonis with two outs in the ninth inning in Tampa Bay's 8-2 win Saturday.
"His hand is pretty sore," Hyde said. "Hopefully he feels better as the day goes on today. He's getting some treatment."
Mountcastle is hitting .253 with 15 homers and 55 RBIs for the Orioles, who are in the mix for an American League wild card after going 52-110 last season.
The Associated Press contributed to this report.