Mullens is active for Sunday's game against the Texans.
Mullens looks set to work as the top backup to Sam Darnold, who is slated to ink a one-year deal with Minnesota, while Kirk Cousins is primed to move on to Atlanta, Christian Gonzales of NFL.com reports.
Mullens completed 30 of 44 passes for 396 yards with two touchdowns and two interceptions and rushed twice for eight yards in the Vikings' 30-20 loss to the Lions on Sunday.
Coach Kevin O'Connell said Wednesday that Mullens will start Sunday's season finale against the Lions.
Coach Kevin O'Connell named Jaren Hall the Vikings' starting quarterback for Sunday's contest against the Packers, with Mullens serving as the No. 2 option at the position, Alec Lewis of The Athletic reports.
Mullens completed 22 of 36 pass attempts for 411 yards, two touchdown and four interceptions in Sunday's 30-24 loss to Detroit. He had one rush for one yard and fumbled twice but did not lose either.
Coach Kevin O'Connell confirmed Monday that Mullens will start Sunday's game against the Lions.
Mullens is expected to draw another start for Minnesota in a Week 16 divisional matchup against the Lions, Jeremy Fowler of ESPN.com reports.
Mullens completed 26 of 33 pass attempts for 303 yards, two touchdowns and two interceptions in the 27-24 overtime loss to the Bengals on Saturday.
Head coach Kevin O'Connell announced Tuesday that Mullens will serve as the Vikings' starting quarterback Saturday in Cincinnati, Kevin Seifert of ESPN.com reports.