Leodis McKelvin (groin) leaves practice

PITTSFORD, N.Y. -- Until Wednesday, Buffalo Bills cornerback Leodis McKelvin appeared to be on track to make his preseason debut Saturday against the Tampa Bay Buccaneers.

That might have changed Wednesday when he left practice with a groin injury. His status for Saturday's game is unclear.

"I have no idea. They haven't told me that yet," coach Doug Marrone said.

McKelvin had been limited throughout organized team activities, minicamp, and training camp as he recovered from offseason hip surgery. He practiced fully Tuesday, lining up on the first team across from Stephon Gilmore.

If McKelvin can't go Saturday, the Bills could turn to either Corey Graham or Ron Brooks as their starter. Graham began to see time at safety this week upon McKelvin's return.