It has once again become a prominent topic of discussion after the team placed quarterback Sam Bradford on the active roster ahead of their divisional round matchup against the New Orleans Saints on Sunday afternoon.
But Bradford suffered a knee injury during the game that sidelined him for the next three games, which is when the Vikings first turned to Case Keenum.
The Vikings waived tight end Kyle Carter to make room for Bradford.
Bradford has practiced the past two weeks, but head coach Mike Zimmer said Friday he hasn't made a decision whether the 30-year-old veteran will dress in Sunday's game.
The Vikings haven't dressed three quarterbacks for a game since November 7, 2013, when Leslie Frazier was the coach and Christian Ponder, Matt Cassel and Josh Freeman all were active against Washington.
"I would very surprised if (Zimmer) dresses three quarterbacks for this game, " said Joe Theismann, a longtime National Football League analyst who won a Super Bowl as Washington's starting quarterback in the 1982 season.
According to ESPN's Courtney Cronin, Keenum, who has played on three teams in five years, got a leg up on the competition by using VR to learn the Vikings' offense. In 15 games played, he posted career highs across the board with 3,547 yards with 22 touchdowns with just seven interceptions while holding a 98.3 quarterback rating.
Bridgewater on Friday wouldn't reveal who Sunday's backup will be. He is now set to start his first playoff game of his career with a chance to help guide the Vikings to their first Super Bowl win. Bradford, who had surgeries in 2013 and 2014 to fix a torn left ACL, had arthroscopic surgery November 7 on that knee and was placed on injured reserve the next day.
There seemed to have been a true mental advantage for Keenum, who in addition to practice and game experience, got used to seeing the same plays over and over, knowing what to expect. "He's working back in, getting his feet wet".