Houston Texans star linebacker Brian Cushing will start training camp on the physically unable to perform list.

Cushing is coming off a knee injury. He's expected to be ready before the start of the season.

Rookie nose tackle Louis Nix and outside linebacker Trevardo Williams are on the physically unable to perform list.

Meanwhile, the Texans cut offensive tackle Brennan Williams with a failed physical designation.

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Aaron Wilson covers the Ravens for The Baltimore Sun