There were only 13 games in Week 8, but the NFL still had its fair share of major injuries this week. The following rundown features the week's most serious injuries as of Sunday night.
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The Dallas slot receiver left Sunday's game against Washington with a concussion and will be in the concussion protocol entering Week 9.
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Marcus Cannon, OT, Patriots
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New England escaped with a win against the Chargers, but their right tackle suffered a right ankle injury. Cannon was also injured earlier this season.
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Morris Claiborne, CB, Jets
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Claiborne left Sunday's sloppy conditions with a foot injury, but X-rays were negative. His status is up in the air with the Jets playing Buffalo on Thursday.
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Christian Covington, DE, Texans
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The Texans defensive line continues to be banged up. Covington left Sunday's duel with Seattle after an elbow injury.
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Flacco left in the first half of Thursday's game with a concussion and injury to his ear after taking a controversial hit from Kiko Alonso when he attempted to slide. Alonso could be suspended for the hit.
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Pierre Garcon, WR, 49ers
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Garcon played sparingly in the second half of Sunday's game after injuring his neck in the second quarter. The severity of the injury is unclear.
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Chris Hogan, WR, Patriots
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Hogan's arm was in a sling after leaving Sunday's game late with an injured shoulder. The Patriots head into a bye, so Hogan will have extra time to heal.
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Duke Johnson, RB, Browns
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Johnson was evaluated for a concussion after leaving Sunday's game in London, but he was cleared. The Browns have a bye in Week 8.
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Michael Johnson, DE, Bengals
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Johnson left Sunday's game against the Colts with an injured back. His status is unknown as the Bengals visit Jacksonville next week.
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Kyle Long, OL, Bears
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The injury plagued season for Long continues after leaving Sunday with a hand injury against the Saints. His status is unclear.
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Zach Miller, TE, Bears
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Miller suffered a nasty looking dislocated knee on a touchdown catch attempt in the end zone. He will miss the rest of the season, and Dion Sims will replace him at tight end.
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The oft-injured Reed suffered a hamstring injury in the first half of Sunday's game and didn't return. He appears questionable for Seattle next week.
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Robinson left in the second quarter of Sunday's game with a head injury. His status is unclear.
Kelley L. Cox / USA Today Sports Images
San Francisco's Pro Bowl offensive tackle suffered a broken orbital bone and needed stitches. He will be out for the foreseeable future.
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Earl Thomas, S, Seahawks
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Thomas had an interception for a touchdown early in Sunday's game, but he left late with a hamstring injury. The Seahawks said the injury isn't serious.
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Solomon Thomas, DE, 49ers
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San Francisco's bad season got worse when their top draft choice, Thomas, left with a knee injury and didn't return. His status is uncertain.
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Jimmie Ward, S, 49ers
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The 49ers secondary took a hit when Ward suffered a fractured forearm on Sunday. He's out indefinitely.