Lions running back Reggie Bush is not expected to play Sunday against the Washington Redskins due to a knee injury, a league source told ESPN NFL Insider Adam Schefter. He is expected to play next week, however, the source said. Joique Bell and, potentially, rookie Theo Ridrod are expected to see the majority of snaps Sunday in Bush's place. Bush injured his left knee last Sunday when it collided with the helmet of Arizona Cardinals safety Tony Jefferson during his 26-yard catch in the second quarter of Sunday's 26-21 loss. He grabbed it immediately, left the game and returned later. Source: ESPN.com