There’s a calculated risk every time a player participates or plays in an all-star game. Former Oklahoma cornerback Aaron Colvin appears to have learned that lesson the hard way. Multiple reports indicate that Colvin sustained a torn ACL in his right knee Tuesday during Senior Bowl practice in Mobile, Ala. Colvin’s agent Ken Sarnoff confirmed the injury. Before his injury, Colvin was projected as a second- or third-round draft pick. But with his injury, it’s conceivable that he might not even be drafted.