The UFC have tentatively penciled in a heavyweight title rematch between Junior Dos Santos and Cain Velasquez for the main event of UFC 152 in Toronto this September.

That’s the plan according to Dana White backstage after the ‘UFC On FX 3’ event this weekend in Florida.

However it’s not a done deal as Velasquez may have broken his left hand during his recent win over Antonio Silva, and if so that could put him out of action for up to six months.

UFC 152, which will take place in Toronto, Canada, is also set to feature a welterweight showdown between BJ Penn and Rory MacDonald in the co-main event slot.

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