NFL: Vikings' Peterson Undergoes 'successful' Knee Surgery

LOS ANGELES, (APP - UrduPoint / Pakistan Point News -22nd Sep,2016) - Minnesota Vikings running back Adrian Peterson had "successful" surgery on his right knee on Thursday and will begin rehabilitation immediately, although the NFL team gave no date for his return.

Peterson, 31, had the operation in Minneapolis four days after he was hurt in the Vikings' victory over the Green Bay Packers on Sunday. "Adrian Peterson had a successful lateral meniscus repair this morning," the team said.

"The surgery was performed by team physician Chris Larson at Twin Cities Orthopedics. "There were no additional injuries or issues noted in or surrounding the knee joint during the surgical procedure," the Vikings noted, contradicting a report that Peterson also had a torn lateral collateral ligament.

"The rehabilitation process will begin immediately," the team said.

Vikings coach Mike Zimmer acknowledged on Wednesday that Peterson's injury could be season-ending. "Everything is possible," Zimmer said.

"Could be season-ending. Could be three weeks, four weeks. Who knows?" Peterson, who missed almost the entire 2014 season after being accused of assaulting his four-year-old son, returned to football last year to top the single-season rushing standings.

He became only the third man over 30 to top the standings after rushing for 1,485 yards over 16 games, averaging 4.5 yards per carry. Peterson has come back from a knee injury before. He tore two left knee ligaments in 2011 but returned and rushed for 2,097 yards in the 2012 regular season, winning Most Valuable Player honors.