Robert Mathis suffers setback on Achilles rehab

Colts outside linebacker Robert Mathis missed the entire 2014 season because of a PED suspension followed by a torn Achilles tendon. His 2015 isn’t looking great, either. Mike Wells of ESPN reports that Mathis suffered a slight setback as he works to rehab his torn Achilles. According to Wells, there were rumors that Mathis re-tore…