"It felt good being back out there with the guys," said Foster. "You miss that camaraderie and that competition and just the whole atmosphere of football when you're away from it."
Derrick Ward started in Foster's place on Sunday against Indianapolis, but Ben Tate did most of the work in Houston's 34-7 rout at Reliant Stadium. Tate ran for 116 yards and a touchdown, while Ward added 39 yards on 11 carries with a score.
Foster led the league in rushing last season with 1,616 yards to go along with 18 touchdowns. He also totaled 2,220 yards from scrimmage.