The Chicago Bears (1-1) released their final injury report ahead of Sunday's Week 3 matchup against the Indianapolis Colts (0-2). The Bears will be without receiver Keenan Allen for a second straight game as he continues to nurse a heel injury that he reaggravated in Week 1.

Here are the three key matchups for Sunday’s game that will go a long way in determining the winner of the Colts versus the Bears.

The Colts (0-2) looked overmatched in an ugly game last week against a Packers team that did not have starting quarterback Jordan Love, and although Chicago (1-1) has a win on its record, a revamped Bears offense has struggled the first two games of the season.