McNabb says there’s an 80-to-90-percent chance he’ll play

With a 90-man offseason roster for the first time ever and 32 total teams, that’s 2,880 NFL jobs . . . and Donovan McNabb owns none of them. But he nevertheless believes that, when the total jobs are cut to 53 per team (1,696 total), he’s likely to have one.  Appearing in studio on Thursday’s…