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Eden Prairie, Minn. — Adrian Peterson will have surgery on his right knee to repair a torn meniscus, putting his season and perhaps his 10-year run with Minnesota in question.

But the Vikings have held off for now on placing the franchise’s career leading rusher on injured reserve.

Peterson was hurt in last Sunday night’s victory over Green Bay, needing assistance off the field after his knee twisted while being tackled at the end of a run. He has 50 yards on 31 attempts this season.

Peterson told ESPN on Wednesday morning the type of tear he was diagnosed with typically requires a minimum recovery time of 3-4 months. Vikings coach Mike Zimmer however, said the timetable for Peterson’s return won’t be clear until after the procedure.

“Everything is possible,” Zimmer said. “It could be season ending. It could be three weeks, four weeks. I don’t know.”

Peterson made a swift recovery from a torn ACL in his left knee suffered in the second-to-last game of the 2011 season. He came back with a flourish and won the league’s MVP award the following season with 2,097 yards rushing.

He led the NFL in rushing again last season, but he’s 31 now with a contract that might not make financial sense in its current state for the Vikings to carry next year.

The Vikings (2-0) signed running back Ronnie Hillman, who was on the Broncos Super Bowl-winning team last season.

Jerick McKinnon will start Sunday at defending NFC champion Carolina.

... Starting left tackle Matt Kalil was placed on injured reserve with a lingering hip problem that he played through in the first two games.

He will require surgery that Zimmer said the team believes will be season ending. T.J. Clemmings will start in his place.

Personnel dept.

Patriots quarterback Jimmy Garoppolo (shoulder) is listed as doubtful heading into Thursday’s game against the Texans.

... Colts quarterback Andrew Luck missed Wednesday’s practice with a sore throwing shoulder but he plans to play Sunday at home against the Chargers.

... Colts receiver Donte Moncrief will miss 4-6 weeks with a fractured left shoulder blade.

... Washington receiver DeSean Jackson has knee and ankle injuries that could keep him out of Sunday’s game against the N.Y. Giants.

... Browns rookie wide receiver Corey Coleman broke his hand during practice. They also lost starting center Cameron Erving with a bruised lung and defensive end Carl Nassib with a broken hand in last Sunday’s loss to the Ravens.

... The Broncos re-signed safety Shiloh Keo. They had released him over the weekend while he was serving a two-game suspension for an offseason drunken driving arrest.

Extra points

Suspended Browns wide receiver Josh Gordon had an arrest warrant issued against him in a paternity case.

... Dolphins safety Michael Thomas and linebacker Jelani Jenkins say they received death threats through social media following their national anthem protest, but they helped organize a town hall with police and youth leaders.

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