Rams QB Matthew Stafford placed in concussion protocol play RC, Rex blast Rams for late-game execution (1:53) Ryan Clark and Rex Ryan break down how the Rams executed poorly during Tampa's winning drive. (1:53) 3:54 PM ET Sarah BarshopESPN Staff Writer Close Covered the Packers for ESPN Milwaukee Marquette University graduate THOUSAND OAKS, Calif. -- Los Angeles Rams quarterback Matthew Stafford has entered the concussion protocol, head coach Sean McVay said. McVay said Stafford entered the protocol on Tuesday after the team's medical staff was doing their "cleanup after the game" and "determined that they felt like that was the best thing for him." McVay said he didn't have any indication during the game that Stafford was dealing with any concussion symptoms. He said "some of the questions" Stafford was asked after the game by the medical staff "and then what they ascertained as a result of those questions made them feel like, 'Hey, the appropriate thing for the person and the player in this instance is to put him in the protocol.' "Whether or not that means he has a concussion or not isn't for me to truly understand," McVay said. "But there's the necessary steps that we need to take." Editor's Picks Week 10 buzz, upset picks: Deepest NFL divisions, struggling Packers and Rams, OBJ destinations 9h Jeremy Fowler and Dan Graziano 1 Related John Wolford is the Rams' backup quarterback and would play if Stafford has not been cleared before Los Angeles hosts the Arizona Cardinals on Sunday, but McVay said the team will "take it a day at a time with Matthew and see where we are." "I know Matthew's going to do everything in his power to try to be able to be ready and we'll just take it a day at a time," McVay said. "But John's a guy that when he's been in these situations, he's stepped in and done a really good job. And it wasn't too long ago that he had to come in in a game that we had to have to be able to get into the playoffs and he performed incredibly well." In Wolford's NFL debut in 2020, the quarterback helped lead the Rams to a playoff spot with a victory over the Cardinals. Wolford was playing in place of Jared Goff and threw for 231 yards and ran for 56 more in the Week 17 victory. This season, Stafford has completed 68.4% of his passes for 1,928 yards, eight touchdowns and eight interceptions.