Former boxing champ Floyd Mayweather Junior continues to fuel rumors of a possible fight with the UFC's Conor McGregor.  Mayweather's on a publicity tour in the UK where he told FightHype.com yesterday that he's ready to come out of retirement.  He urged McGregor to sign the paperwork so they can meet up, but warned that the money must be right because he's got family to worry about. Mayweather, who retired undefeated at 49-0 , initially said he'll return to the ring for a guaranteed $100,000,000.  

He's repeatedly resisted demands to guarantee his opponent much more than $15,000,000.

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