McCoy: Mathews running out of bounds a “critical mistake”

San Diego Chargers head coach Mike McCoy was not happy with the decision Ryan Mathews made to run out-of-bounds late in their 19-9 victory over the Indianapolis Colts on Monday night. With the Chargers holding a 16-7 lead and 2:34 left on the clock, Mathews stepped out-of-bounds on a four-yard carry that allowed the Colts…