ORCHARD PARK, N.Y. (AP) -Bills starting fullback Darian Barnes will have tests on his injured right foot Monday, leaving his status uncertain for Buffalo's game at St. Louis on Sunday.
Coach Dick Jauron didn't discuss the nature of the injury, except to say Barnes will have tests later in the day.
Barnes was hurt when he tumbled awkwardly into the sideline after a 9-yard reception midway through the second quarter of Buffalo's 24-23 win against Oakland on Sunday.
Barnes got up favoring his right leg, but stayed in the game for a few plays before limping off the field and did not return.
Barnes was spotted after the game wearing a protective boot on his right foot. He was not in the locker room on Monday, but there was a pair of crutches leaning against his stall.
The Bills, with their first 3-0 start since 1992, are off until they return to practice on Wednesday.
A seven-year NFL veteran, Barnes signed with the Bills this offseason after first-year offensive coordinator Turk Schonert reintroduced the fullback position.
Barnes was hurt.

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