Flacco came in relief earlier this season and started the next two games when Richardson was out with a right hip injury. The 39-year-old completed 71 of 108 passes for 716 yards, seven touchdowns and one interception, and Indianapolis went 2-1.

The Colts are 2-3 in games Richardson has started and finished. The University of Florida product is 59 of 133 for 958 yards, four TDs and seven INTs.