The retired former UFC welterweight champions, who coached against one another on the sixth season of The Ultimate Fighter, got into it over Twitter on Wednesday, challenging one another to a rematch.
But UFC president Dana White put a stop to the talk before it could really heat up.
"I get it, they don't like each other," White said Thursday. "It's not even a sideshow. Both great competitors, great champions. Matt Hughes is a guy who helped us build this thing, as did Serra. Serra was always a great guy to us. But this doesn't need to happen."
Hughes and Serra fought at UFC 98, with Hughes taking a unanimous decision. Hughes‘ last fight was a knockout loss to Josh Koscheck in Sept. 2011, and is a member of the UFC Hall of Fame. Serra, best known for his stunning upset of Georges St-Pierre to win the welterweight title at UFC 69, last fought in Sept. 2010, a decision loss to Chris Lytle.
Besides, it's been awhile since either fighter has attempted to make 170 pounds, prompting White to take a playful jab.
"Where are they going to fight, super heavyweight?"