DETROIT - For a guy sometimes notoriously serious and focused, Matt Hughes seemed like a completely different person at today's UFC 123 open workouts.
The former champ, who meets B.J. Penn in a rubber match in the welterweight co-headliner of Saturday's UFC 123 event, was cordial, jovial and amazingly patient with countless interview requests that stretched all afternoon.
So what changed for Hughes, who's hinted at a possible retirement in recent years? Primarily, the sport of mixed martia