McGee's injury isn't believed to be serious, according to a team source.
"It was just a competitive play, and he did what he was trying to do," Owens said. "He was trying to break it up, and I was trying to make a play on it."
McGee is the most reliable coverage cornerback at a position filled with youngsters. The seventh-year pro missed two games last year with a sprained knee.
Sophomore corner Leodis McKelvin, the 11th overall draft pick last year, missed practice with a hand issue. Ashton Youboty remains sidelined with plantar fasciitis and might not be back on the field until training camp. That has cleared way for another second-year cornerback, Reggie Corner, to get reps as the nickel back.
In other Bills news, they might have caught a break when the New England Patriots signed linebacker Paris Lenon. That likely means the Patriots no longer are interested in linebacker Pisa Tinoisamoa, to whom the Bills reportedly have offered a contract.