Injuries: Dont'a Hightower believed to have MCL sprain

The Patriots are 10-1, but it feels like every New England game comes at the price of an injury to a big-name player.

Even before Rob Gronkowskiinjured his knee Sunday, the Patriots lost linebacker Dont'a Hightower.

NFL Media's Albert Breer reported Monday that Hightower is believed to have suffered an MCL sprain.

The knee injury is generally not season ending, but would keep Hightower out a few weeks. The Pats' run defense has struggled when the linebacker hasn't been on the field.

Here's the rest of Monday's injury news we are tracking:

1. In other news concerning the Patriots, Gronkowski could miss a week with a knee strain, according to NFL Media Insider Ian Rapoport. Gronk underwent an MRI on Monday to determine the severity of the injury, but the belief is that he has no structural damage.

2. Chiefs linebacker Justin Houston suffered a PCL sprain, an MRI confirmed Monday night, Rapoport reported. He's week-to-week and could miss some time. Houston left the Chiefs' win over the Bills in the first quarter and did not return.

3. Steelers quarterback Ben Roethlisberger is in the league's concussion protocol after self-reporting symptoms in the final minutes of Pittsburgh's 39-30 loss to the Seahawks.

4. Cardinals running back Chris Johnson is out indefinitely with a broken tibia, Rapoport reported. Running back Andre Ellington is day to day, general manager Steve Keim said Monday on the Doug and Wolf Show on KMVP-FM. Ellington's injury is related to the toe on his right foot. Rookie David Johnson got most of the snaps in the game once CJ2K and Ellington left.

5. Browns quarterback Josh McCown suffered a shoulder injury in the fourth quarter of Monday's game against the Ravens, the Browns announced. He did not return. Cornerback / kick returner Justin Gilbert suffered a concussion during the second half of Monday's game against the Ravens.

6. Ravens tight end Maxx Williams left against the Browns in the fourth quarter to undergo evaluation for a concussion, the team announced.

7. Colts running back Ahmad Bradshawwas placed on injured reserve after he suffered a wrist injury in Indy's 25-12 win over the Buccaneers. He will undergo surgery today. Linebacker Jerrell Freeman is week-to-week with a grade-2 hamstring strain. Offensive tackle Anthony Castonzo is also week-to-week with a knee strain.

8. The Seahawks have officially placed tight end Jimmy Graham on injured reserve. Coach Pete Carroll confirmed that Graham ruptured his patellar tendon during Sunday's win against the Steelers. Graham will undergo season-ending surgery.

9. Bills defensive end Alex Carrington tore his quad tendon and is out for the season. He will have surgery today and he was placed on injured reserve.

10. Dolphins center Mike Pouncey suffered a minor foot sprain and is not a lisfranc injury, Rapoport reported, per a source informed of his injury.

11. Jets coach Todd Bowles told the media that linebacker Calvin Pace (abdomen strain) and cornerback Marcus Williams (knee sprain) are still day-to-day. Cornerback Darrelle Revis is still in concussion protocol, but is "making slight progress."

12. Niners tight end Garrett Celek is going for an MRI, according to coach Jim Tomsula. The injury is being categorized as a high ankle sprain. Running back Carlos Hyde (foot) is day-to-day.

13. Dolphins wideout Rishard Matthews suffered multiple fractured ribs against the Jets, NFL Media's Rand Getlin reported. There's no clear timetable for Matthews' return.

14. Rams coach Jeff Fisher told reporters Monday that quarterback Case Keenum (concussion) is still being evaluated and will likely be on the practice field in a limited capacity on Wednesday.