After a storied run as a two-time UFC welterweight champion, Matt Hughes fell into a slump, losing three of four fights between November 2006 and June 2008.
Granted, two of those losses were to Georges St. Pierre, and Hughes was never in a losing slump that bad in his MMA career. After his loss to Thiago Alves at UFC 85, Hughes said he had one fight left in him, and it was one he wanted against Matt Serra.
The two developed a rivalry on T.U.F. 4 while Serra was a contestant, and Hughes came in for a visit.
Serra was vocal when Hughes started to criticize the cast and brag about submitting GSP at UFC 50.
They were originally supposed to fight at UFC 79 after the conclusion of T.U.F. 6, which Hughes and Serra were coaches, but due to an injury to Serra, Hughes fought St. Pierre instead.
The rivalry was finally settled at UFC 98, when Hughes defeated Serra by unanimous decision.
The reason that this is one of Hughes' best career moments is because despite a losing skid and saying that the Serra fight was his one fight that he had left, Hughes decided to press on and continue his MMA career, stating that he had some fights left in him, marking a renewed fighting spirit that some think Hughes lost after his loss to Alves.
He signed a multi-fight deal with the UFC after the Serra bout.