"He got hit pretty hard in that knee, and it's a little swollen," Acta said after Thursday's game, a 2-1 win over the Tigers that gave the Indians the series sweep. "We'll see how he shows up tomorrow."
Hafner stayed in the game after the incident, and the Indians are lucky he did. He crushed a game-tying two-run homer in the sixth inning of Wednesday's 4-2 win, and knocked in the go-ahead run with a groundout in the eighth.
Hafner was in a minor hitting slump before his 1-for-3 performance on Wednesday, having entered the game with only one hit in 13 at-bats.