Cowboys assistant Leon Lett carted off at practice with knee injury

Dallas Cowboys assistant defensive line coach Leon Lett was carted off the practice field Wednesday with what multiple reports indicated was a right leg injury.The injury occurred early in practice, but it wasn’t immediately clear what caused it.Lett, 52, has been a Cowboys assistant coach since 2011. He played for Dallas from 1991 to 2000 and was a member of three Super Bowl-winning teams.