It wasn't obvious on Mark Teixeira's ground ball through the middle with two outs in the ninth inning, but manager Jim Leyland confirmed that Omar Infante injured his right thumb.
"When he went for the ball up the middle, he caught his thumb on his side," Leyland said. "It's a contusion."
CBSSports.com first reported the injury after Tuesday's game. X-rays taken after the game turned out negative for any structural damage.
The injury wasn't enough to keep Infante out of the lineup for Game 4 on Wednesday night. Leyland waited before filling out his lineup, but received positive word early in the afternoon. Infante later took full batting practice and fielded ground balls without problem before the game was postponed until Thursday.
Infante is batting 8-for-30 (.267) with nine strikeouts this postseason, but his overall play has been borderline stellar at a position where the Tigers had a black hole of production before trading for him on July 24.