Raiders lose Lynch for at least a month

Raiders running back Marshawn Lynch will miss at least a month because of a groin injury.

A person familiar with the injury said Friday that an MRI this week determined the severity of the injury. The person spoke on condition of anonymity because the team has not made any announcement. NFL Network first reported the diagnosis.

Lynch was hurt last week in a 27-3 loss to the Seahawks in London. The Raiders (1-5) are off this week and will play again Oct. 28 at home against the Colts. Oakland could choose to place Lynch on injured reserve, which would require him to miss at least eight weeks.

The 32-year-old Lynch has been one of the few bright spots for the Raiders this season. He ranks 12th in the league with 376 yards rushing, averaging 4.2 yards per carry with three touchdowns. Lynch ranks fourth in the NFL in rushing since Week 12 last season.

With Lynch sidelined, the struggling Raiders will likely turn to Doug Martin and Jalen Richard at running back. on Thursday night, trailing 21-3 after one quarter and 35-3 at the half. Wilks called the effort “embarrassing.”

But he said his decision to replace McCoy was not based on that one game alone.

“We weren’t productive enough,” Wilks said. “Let’s just say that.”

Bears linebacker Khalil Mack must wait until just before game time to learn if he gets a chance to rush Patriots quarterback Tom Brady at Soldier Field.

Mack played through an ankle injury in Chicago's last game, a 31-28 loss to Miami. On Friday, he practiced for the first time this week, although on a limited basis. Bears coach Matt Nagy says he thought Mack “moved around pretty good.”

Mack is listed as questionable for Sunday. Nagy says team medical personnel will monitor how he bounces back from Friday's practice.

Mack has played in 70 straight games and has never missed a start.

Mack has five sacks, and last week was held without a sack for the first time this season. He didn’t comment Friday on his injury, but wants to see the Bears defense bounce back from its worst game of the year.

Eagles RB Darren Sproles will miss his sixth straight game because of a hamstring injury, and CB Sidney Jones and S Corey Graham also are out Sunday against the Panthers . ... Jets CB Buster Skrine and S Marcus Maye are out for Sunday’s game against the Vikings, and CB Trumaine Johnson is doubtful . ... Dolphins DE Cameron Wake (knee) is on course to return Sunday against the Lions.