Green Bay, Wis. — Aaron Rodgers might be in the midst of a Willis Reed moment for the Packers after returning to the field in the third quarter.

Rodgers aggravated his left calf injury on a 4-yard touchdown pass to Randall Cobb with 2:24 left in the second quarter. Rodgers left the game and went to the locker room.

Backup quarterback Matt Flynn was under center for the one-play drive at the end of the first half and played the first drive, a three-and-out, of the third quarter. But after Green Bay stalled on the first drive, Rodgers emerged from the locker room and began warming up by throwing passes to Jordy Nelson.

The Lions scored on their first possession of the third quarter to tie it at 14-14, but Rodgers marched the Packers to a touchdown on the ensuing drive, scoring on a 13-yard pass to Cobb.

With 3:33 left in the third quarter, the Packers led 21-14.

On the play that resulted in an injury, Rodgers escaped the pocket and hobbled before throwing the pass to Cobb. After the score, he lay on the ground and needed two trainers to help him walk to the sideline.

The touchdown to Cobb gave the Packers a 14-0 lead, but the Lions responded with a 20-yard touchdown from Matthew Stafford to Calvin Johnson to cut it to 14-7 just before the end of the first half.

Flynn, who would return if Rodgers aggravated the injury again, has made 50 career appearances, including six this season. He's 7 of 15 for 60 yards and one interception in 2014. His most memorable game, though, was against the Lions in Week 17 in 2011 when he finished 31 of 44 for 480 yards, six interceptions and one interception, leading the Packers to a 45-41 win in Green Bay.