Bears quarterback Justin Fields went to the injury tent and then the locker room after being sacked five minutes into the second half of Sunday’s game against the Vikings.

Fields was holding his right arm gingerly. The team has not given a reason for his departure.

Rookie quarterback Tyson Bagent warmed up. He’s the Bears’ second-string quarterback. Veteran Nathan Peterman can’t be used, by league rule, unless Bagent is hurt.

Bagent is an undrafted rookie from Div. II Shepherd University.

Fields struggled against the blitz-happy Vikings, going 6 for 10 for 58 yards and one interception with a 36.7 passer rating before getting hurt. Fields scrambled twice on the Bears’ first drive of the second half before getting sacked on third-and-7 by Vikings veteran edge rusher Danielle Hunter.

Fields is in the third year of his rookie contract. The Bears must decide this offseason whether to pick up his fifth-year option. They also hold two first-round draft picks, including that of the winless Panthers.