Chicago Bears quarterback Mitchell Trubisky will start against the Minnesota Vikings next Monday, the team announced.
The Bears draft pick will make his regular season debut in the game, which will be nationally televised from Soldier Field.
The decision to play Trubisky was originally reported on Monday morning by NFL Network's Ian Rapoport and ESPN's Adam Schefter and Dan Graziano.
Mike Glennon, who signed with the Bears as a free agent this spring and started for the team in their first four games, has a passer rating of 76.9 and is 93 for 140 for 833 yards with four touchdowns along with five interceptions and three lost fumbles.
He threw two interceptions against the Packers, lost a fumble on a sack and had another snap ricochet off his knee for another turnover in the Bears' loss at Lambeau Field on Thursday night.
The loss dropped the Bears to 1-3 on the season, and ultimately led to the decision to make a change at quarterback.
"The No. 1 thing we obviously have to fix are the turnovers," Glennon had said after the loss. "I'm not giving our team a chance when you turn the ball over like that."
Bears head coach John Fox will discuss the situation in a radio interview on Monday night, but after the Bears' game on Thursday he made it a point not to single out Glennon's poor performance.
"I don't single out one position," Fox said after the loss. "I know there are a lot of people out there that enjoy that. There's 11 critical positions and we've got to do a lot of work on all 11 of them."