BEREA, Ohio — Browns coach Eric Mangini has defended his practices one day after running back Jamal Lewis said Cleveland's players are being worked too hard.

Lewis complained that Mangini was wearing out his players during the week with 2½- to 3-hour workouts and they had nothing left by kickoff on Sunday. Mangini said on Friday that he and Lewis, a team captain, had a "good conversation" on Thursday and discussed their differences.

Mangini maintains his practice methods are not any longer or more physical than ones he's conducted in the past.

Lewis' comments came a few hours before Browns practice squad player Keith Grennan sustained a serious knee injury during a post-practice "opportunity period."