Report: Chiefs' Houston diagnosed with sprained PCL, considered week to week

Kansas City Chiefs star outside linebacker Justin Houston was diagnosed with a sprained PCL after undergoing an MRI and is considered week to week, according to NFL Network's Ian Rapoport.

Houston suffered the injury during Sunday's victory over the Buffalo Bills after tripping over a teammate in the first half. The Chiefs linebacker was helped to the locker room and was seen sporting a limp.

Chiefs head coach Andy Reid said he was hesitant to provide a prognosis on Houston's injury following the game.

One of the NFL's premier outside linebackers, Houston recorded 30 tackles, 7.5 sacks, a forced fumble, and two interceptions through 11 games.

His 22 sacks last season led the NFL.

If Houston misses any time at all, it would be a significant loss for a surging Chiefs team that rattled off five consecutive victories.

Houston would likely be replaced by Frank Zombo in the starting lineup.