Aaron Rodgers heard the applause after walking out of the stadium tunnel and back on to the field.
The team doctor had checked out his left knee after the Green Bay Packers quarterback was carted off the field in the second quarter. Rodgers, it seemed, had avoided a major injury.
He was good to go. The adrenaline kicked in.
The hobbling two-time NFL MVP threw three touchdown passes in the second half after returning from injury, and the Green Bay Packers overcame a 20-point deficit for a thrilling 24-23 win over the Chicago Bears on Sunday night.
Rodgers connected with receiver Randall Cobb for a catch-and-run through the secondary for a 75-yard touchdown and the go-ahead score with 2:13 left in the game.
Nick Perry sacked the Bears' Mitchell Trubisky on fourth-and-10 with 58 seconds to complete the comeback.
Against the archrival Bears. To start the Packers' 100th season.
Sunday marked the first time in franchise history that the Packers won after trailing by 17-plus points entering the fourth quarter, according to the Elias Sports Bureau.
The Packers posted the second-largest comeback in franchise history at Lambeau Field, behind only a rally from 21 points down to beat New Orleans on Sept. 17, 1989.
For Rodgers, this was special.
And especially because how awful the Packers played in the first half.
A Chicago defense featuring newly acquired star linebacker Khalil Mack dominated until the third quarter. Mack had a 27-yard interception return for a touchdown against backup quarterback DeShone Kizer in the second quarter.
A gimpy Rodgers returned in the second half and finally figured out the Bears. He also found Davante Adams and Geronimo Allison for touchdown passes.
He finished 20 of 30 for 286 yards, including 17 of 23 for 273 yards in the second half.
It was Rodgers' first regular-season home game since Sept. 28 against the Bears. He was limited to seven games in 2017 because of a collarbone injury.
Mack nearly stole the show. He also stripped the ball for a turnover in the red zone off Kizer in the second quarter. Mack made an immediate impact in his first game since the Bears acquired the premier pass rusher in a blockbuster deal with the Oakland Raiders.
The Bears led 20-0 at one point and their defense dominated until the second half.
Then Rodgers returned, and the Packers' defense held the Bears in check.