"Billy McKinney will be out for the rest of the season," Smokies manager Buddy Bailey told Justin Rocke, the team's senior broadcast and media assistant, on Tuesday evening. "X-ray showed a hairline fracture.
The 20-year-old was shelved after he fouled a ball off his right knee in the fourth inning against Charlotte on Aug. 13. He finished the at-bat -- recording a sacrifice fly -- and then left the game. He hit .285/.346/.420 with 26 doubles, three homers and 39 RBIs for Tennessee this season and .300/.371/.454 with 31 two-baggers, seven dingers and 64 RBIs in 106 games across two levels.