ESPN Boston believes free agent G/C Donald Thomas has proven he's capable of being a starter.
Thomas ended up playing 616 snaps last season thanks to injuries to Logan Mankins and Dan Connolly, and graded out as a top-20 guard in Pro Football Focus' ratings. With Mankins and Connolly both signed through 2014, there's a pretty good chance the Pats will lose Thomas to free agency. Going on 28, Thomas could draw multi-year offers.













