Pacquiao has unfinished business against Mayweather

Floyd Mayweather accepted an invite to watch Filipino icon Manny Pacquiao's WBO title fight on Saturday, leaving many wondering if a request to step back in the ring would be next. Mayweather had a front row seat at the Thomas & Mack Center to watch Pacquiao easily beat former champion Jessie Vargas with a unanimous decision victory. Pacquiao said on Sunday that he is eager to avenge his 2015 loss to Mayweather and he doesn't feel the contract negotiations would be nearly as acrimonious as they …