Brock loses his by KO to Wladimir Klitschko
Valuev will be the last to lose his as Don King ain't about to let him fight a LEGIT heavyweight
I can't see Hatton losing his to anyone other than JLC or Cotto at 140, at 147 Baldomir would be ALL WRONG for him
PBF, the talent is out there to stop him but he's been on a roll for so long most guys are beat before they get in the ring with him