Fields will need to strengthen his grip before making a comeback, so surgery is apparently not in the cards for him.

The Bears found it difficult to move the ball quickly against the NFC North rival Vikings. Midway through the third quarter, undrafted rookie backup quarterback Tyson Bagent took over for Chicago when quarterback Justin Fields left the game due to injury. Due to a throwing hand injury, the team decided he would not be able to play the remainder of the game.

Fields suffered a dislocated thumb, which head coach Matt Eberflus acknowledged on Monday. According to Eberflus, Fields is unlikely to play in Week 7, which takes place when the team hosts the Las Vegas Raiders on Sunday. When Fields might be ready to return to the field, Eberflus did not provide a timeline but did say that “it’s really going to come down to grip strength.”

According to NFL Media, Fields won’t need surgery anytime soon. Instead, his goal is to return to the field as soon as possible by using his rehabilitation to strengthen his grip. Should Fields require surgery, his absence would be permanent.

When Fields went down hard at the conclusion of a rushing attempt toward the sideline, he had only completed six of ten throws for 58 yards and an interception, trailing 12–6. The next play saw him stay on the field, but he took a while to stand up following a scramble and pass.

Undrafted out of Shepherd University’s Division II, Bagent defeated seasoned backup P.J. Walker to win Chicago’s starting backup position during the preseason. Due to Nathan Peterman’s injury as a reserve, he was the only other active quarterback for the Bears on Sunday. Fields mishandled the ball on his first series after taking Fields’ place; the Vikings recovered and scored on a touchdown to take a 19-6 lead. While he did recover a little, concluding his 10 of 14 passing for 83 yards on the day, he also threw an interception to Byron Murphy Jr. of Minnesota at the two-minute warning, which turned out to be Chicago’s last possession of the game.