By Arnie Stapleton
AP Pro Football Writer
ENGLEWOOD, Colo. — The long-term benefit of getting Peyton Manning so much rest this summer is that he should be fresher in December.
September might not be so smooth.
With longtime apprentice Brock Osweiler getting so many snaps this summer, Manning’s work has been curtailed and the quarterback who has long despised taking a day — or even a play — off, was 8 for 15 for 52 yards in his preseason debut last week.