The Vikings on Wednesday will place quarterback Sam Bradford on injured reserve to make room on the roster for quarterback Teddy Bridgewater, NFL Media reported.

Bradford, who has missed six of the past seven games with a left knee injury, had arthroscopic surgery on Tuesday. Bridgewater, who hasn’t played since suffering a torn ACL in August 2016, was elevated from the physically unable to perform (PUP) list on the last day the Vikings could do so.

The move would put Bradford out for the rest of the regular season, although he could be activated if the Vikings make the playoffs. Without him, the Vikings have three quarterbacks: Bridgewater, Case Keenum and rookie Kyle Sloter.

Keenum, who is 4-2 as a starter filling in for Bradford, is expected to start Sunday at Washington.

As reported Tuesday night by ESPN, Bradford had surgery that “cleaned up” his knee Tuesday in Florida. It was performed by Dr. James Andrews in Florida, who had done surgeries to repair torn ACLs in the same left knee in 2013 and 2014.