Rookie report Colts Training Camp Day 5: Running back Marlon Mack, the Colts fourth-round draft pick, is making sure he's not a forgotten player in the team's draft class. Mack continues to turn heads with his ability to find the holes in the defense and show off his burst of speed. "He jumps off the tape," coach Chuck Pagano said. "He's popping out there. He's a talented guy. He's showing great athleticism, great vision. We were doing one-on-one pass protection drills against the linebackers, and he's physical. He's got toughness. He's not afraid to stick his face in there and pick up blitzers." The Colts have to start preparing to find Frank Gore's replacement. Gore is 34 years old and he's headed into the final year of his contract. It's still early in the process, but Mack is showing signs of his potential. "He's got a ways to go like everybody else, but he's picking things up and if he can muster all three phases of being a good running back, he's going to be a special player, I think," Pagano said.
