Watch UFC 123 Online. For previous years, Matt Hughes (45-7 MMA, 18-5 UFC) was hinted to be retiring. Questions were raised as to why the fighter changed his mind? Above all, the sport itself (mixed martial arts) became entertaining once again. Being inside the ring brings enjoyment to funs. It’s his passion to fight. To prove his willingness, he will meet B.J. Penn (15-7-1 MMA, 11-6-1 UFC) on Saturday for the UFC 123 event. Watch UFC 123 Online at the Palace of Auburn Hills in suburban Detroit. Pay-per-view will be aired for main card fights and two preliminary fights will be aired on Spike TV or visit Watch UFC 123 Online.