ESPN's Marc Stein says the Mavericks interest in free agent C Andrew Bynum is "legit" and adds "they ARE pursuing him." After losing out on Dwight Howard, the Mavs are turning to Plan B. Bynum is a more than fine backup option if healthy, but no one truly knows if he is. He didn't play in a single game last year due to chronic knee issues and strangely said he won't work out for interested teams this summer. The Mavs' medical staff better make a more thorough evaluation than the Sixers' staff did.