Sweeney injured his left hand while punching a door between the dugout and the Sox's clubhouse at Fenway Park after he grounded out in the eighth inning to wrap up an 0-for-4 night in a 7-3 win over the Tigers. The outfielder will go for X-rays on Tuesday to determine the extent of the injury, and according to a big league source, he'll likely land on the 15-day disabled list.
"I feel like I just let the team down if it's bad," Sweeney said. "I feel terrible right now. Obviously when you hit something you just have so much adrenaline going and you don't know what happened, so afterwards it just hurt a little bit."
The episode began when Sweeney grounded out to second base with one out and Jarrod Saltalamacchia on first. As he walked back to the dugout, Sweeney slammed his helmet to the ground. After that, he hurt his throwing hand with a punch.
"I just came down, walked down the stairs [in the dugout] and kind of punched the door a little bit, which I've done before but maybe not to this extent," said Sweeney, who is hitting .260 with no home runs and 16 RBIs this year. "I'm going to go get X-rays [Tuesday] morning and see if it's OK or not. Hopefully it is."
Sweeney trotted out to right field in the top of the ninth but was replaced by Cody Ross before the inning began.
"He couldn't throw when he went out to play defense," said manager Bobby Valentine.
The outfielder was unsure Monday night if his throwing hand was broken or not, but he said the pain was centered near the knuckle of his pinkie finger.
"I've never broken my hand before, so I don't know what that feels like," he said. "I know it hurts a little bit right now, though."
Sweeney has been on the disabled list twice this season. He missed six games with a concussion in late May and 18 games with left big toe inflammation after going on the DL June 16.
Austin Laymance is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.