Senior Bowl bed check: Day 2

MOBILE, Ala. -- Wrapping up the events from the second day of Senior Bowl practices:

Off-field buzz: While the Senior Bowl gives scouts a chance to evaluate a chunk of prospects for May's draft, it's what happens behind the scenes that is just as important. On Tuesday night, Buffalo Bills defensive coordinator Mike Pettine interviewed for a second time with the Cleveland Browns, who have the NFL's final head coaching vacancy. As such, there's been plenty of buzz around Pettine and the Browns this week in Mobile, perhaps more than any players on the field.

Executives in town: Here's who we spotted in the stands during Tuesday's practices: Bills general manager Doug Whaley, former Bills general manager Buddy Nix, New York Jets head coach Rex Ryan, New Orleans Saints coach Rob Ryan, St. Louis Rams general manager Les Snead, New England Patriots head coach Bill Belichick, and Philadelphia Eagles general manager Howie Roseman. We've also spotted Pittsburgh Steelers head coach Mike Tomlin and Cincinnati Bengals head coach Marvin Lewis this week.

Colvin tears ACL: One injury note to pass along: According to his agent, Andy Simms, Oklahoma cornerback Aaron Colvin tore his ACL in Tuesday's practice. According to Scouts, Inc., Colvin was the top-rated cornerback at the Senior Bowl. He is currently rated No. 67 among all draft prospects.