NEW YORK (CBSNewYork/AP) — Darrelle Revis’ concussion symptoms have not improved a day after injuring his head against the Houston Texans, leaving the New York Jets cornerback’s availability for the team’s next game in doubt.

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Revis was injured in the third quarter of the Jets’ disappointing 24-17 loss Sunday. Coach Todd Bowles says Monday that Revis “wasn’t feeling any better today.”

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Revis is going through the NFL’s concussion protocol and needs to be cleared before he can practice as the Jets prepare for Miami.

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Center Nick Mangold is also uncertain after needing six or seven stitches to close a deep cut on his right hand. He was hurt in the second quarter and remained on the sideline the rest of the game with his snapping hand heavily wrapped. Bowles says an MRI was negative.

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