You're a Golden boy fighter and you become mandatory for a top rank fighters belt.. Does this happen?
Lara vs. Vanes was one of the few times the two companies have worked something out. Top Rank won the purse bid. Vanes opted out of a rematch. It was a WBC eliminator for Canelo... Ponce de Leon vs. Gamboa is another case of them working together... Can't think of too many though.