NFL star Adrian Peterson is reportedly considering retirement

Minnesota Vikings running back Adrian Peterson said he has been so frustrated by the process that led to his NFL suspension and denial of his appeal that he’s considered retiring.

According to a person with direct knowledge of the situation, a complaint will be filed against the NFL on Peterson’s behalf in federal court in Minnesota as early as Monday, according to the Associated Press. The person spoke Friday to the Associated Press on condition of anonymity because the lawsuit had not yet been finalized.

Nothing is final about Peterson’s status with the Vikings, either, and coaches and players have said often this year they’d welcome him back. But in an interview Friday with ESPN.com, Peterson said he’s been so frustrated by this process with the NFL that he’s considered retiring. Focusing on real estate instead and even trying out as an Olympic sprinter in the 200-meter and 400-meter dashes have entered his mind as options, he said.

“You only live once. It might be time for me to pursue that,” Peterson told ESPN.com.

In an ironic twist, Peterson probably wouldn’t have been punished as much had the public backlash to the initial leniency for Rice not been so severe. Now Rice is reinstated and Peterson remains suspended, though Rice doesn’t have a team.

Peterson could find himself a free agent next spring, too. The combination of his age and his contract was already going to make the Vikings think hard about his status, before the heat the organization took for initially announcing he’d continue to play while he went through his due process in court.

Bears kicker questionable for Monday night game

Chicago Bears kicker Robbie Gould is questionable for Monday night’s game against the New Orleans Saints because of a right quadricep injury. Gould sat out last week against Dallas. If he’s not available, Jay Feely is expected be the kicker again. The Bears also promoted rookie quarterback David Fales to the active roster from their practice squad. The move came after the New England Patriots made a push to sign Fales, according to two league sources, the Chicago Tribune reported.

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The Tennessee Titans placed offensive tackle Michael Oher (toe) on season-ending injured reserve. Oher, whose story was featured in the Oscar-winning film “The Blind Side,” signed a four-year, $20-million contract, with $9.5 million guaranteed, in the off-season. ... The Denver Broncos activated linebacker Danny Trevathan, their leading tackler last season, from injured reserve and placed running back Montee Ball and safety Quinton Carter on season-ending injured reserve. ...

The San Francisco 49ers placed three-time All-Pro linebacker NaVorro Bowman (knee injury) and nose tackle Glenn Dorsey (torn biceps) on season-ending injured reserve. ... The Cleveland Browns waived slumping kicker Billy Cundiff and signed kicker Garrett Hartley.. ... New York Jets defensive end Muhammad Wilkerson will not play against the Tennessee Titans on Sunday because of turf toe. He returned to practice this week on a limited basis, but is not ready to play.