By Chris Emma–

CHICAGO (CBS) — Lamarr Houston and Victor Cruz, two vested veterans fighting for roles with the Bears, left Thursday’s preseason game with knee injuries.

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Coach John Fox didn’t know the extent of both injuries after the game, a 25-0 Bears loss to the Browns at Soldier Field. Both will be evaluated further on Friday.

Houston suffered a torn ACL during the second game of last season. He also suffered a torn ACL during the 2014 season.

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Houston was playing out the second half because the Bears are lacking depth at outside linebacker, while Cruz has found himself working for a roster spot ahead of Saturday’s cut-down deadline.

The Bears also lost Deon Bush, Deiondre’ Hall and Connor Shaw to hamstring injuries.

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Chris Emma covers the Bears, Chicago’s sports scene and more for CBSChicago.com. Follow him on Twitter @CEmma670 and like his Facebook page.