University of Arizona linebacker Marquis Flowers (2) right, uses the block by University of Arizona cornerback Jonathan McKnight (6) on UNLV wide receiver Aaron Criswell (9) as Flowers returns a fumble to Rebel nine in the first quarter of their game at Sam Boyd Stadium, Saturday, September 7, 2013, Las Vegas, Nev. Photo by Kelly Presnell / Arizona Daily Star

Kelly Presnell / Arizona Daily Star