Watkins, a backup and special teams player with Philadelphia the past four seasons, was placed on the reserve/injured list. He started on Saturday against the Seattle Seahawks in an exhibition game.
Watkins, 26, recorded 17 tackles last season with the Eagles in 12 games (one start).
Henry tore the ACL in his right knee in May. Verrett tore his Achilles tendon on Friday during a conditioning test and also is out for the season.
--Field Level Media