The 38-year-old veteran, who joined the Broncos in 2012 after playing 14 seasons with the Colts, struggled throughout the game.
Manning wasn't entirely to blame for the loss, but the Denver faithful let him have it anyways.- On mobile and can't view video? Watch here.
As he exited the field for what could be his last NFL game, the crowd sent him off with a mix of cheers and boos.
In a postgame interview, Manning would not confirm whether he'd return next season. It definitely wasn't the best way to potentially end an otherwise spectacular career.