The Broncos final pre-season game is tonight at the University of Phoenix Stadium against the Arizona Cardinals. Peyton Manning is expected to sit tonight. Caleb Hanie and Brock Osweiler will get most, if not all the work tonight. Because of the Republican National Convention, the game is at 9 p.m.  The Broncos will reduce their roster from 75 to 53 on Friday after returning from Arizona, and will hold their first regular-season practice on Monday.