Peyton Manning leaves Broncos practice for treatment on injured thigh

Peyton Manning was present for the start of Denver Broncos practice Thursday but promptly left the field to get treatment on his injured thigh.

Manning didn't aggravate the injury, the Broncos are just being exceptionally careful with their aging star. Manning is expected to ramp up his participation in practice as the week rolls on.

Manning has also been battling an illness. He's expected to suit up Monday against the Cincinnati Bengals, but could be operating at significantly less than 100 percent.