Nick Diaz suffered a tough loss on Saturday night in his expected fight against Georges St-Pierre and he could face another tough loss in his wallet following the event, after admitting he has never paid his taxes.

According to ESPN.com, Diaz spoke about his poor preparation leading up to the fight against St-Pierre at UFC 158 in Montreal at the Bell Centre and mentioned the fact about his taxes. Diaz is an outspoken fighter and has been called immature by some others in the sport. St-Pierre dominated Diaz for most of the fight and took home the welterweight title for the eighth straight time and winning by a score of 50-45.

The week leading up to the fight was filled with quotes and arguments from both fighters, with Diaz accusing St-Pierre of using steroids and St-Pierre exploding at Diaz in a call with reporters. Diaz dropped to 26-9 after the fight, while St-Pierre improved to 24-2. St-Pierre was on top of Diaz early and kept him on his toes the rest of the way.

"I can't be jumping teams. I just have to invest a little bit more, now that I have a little bit more money," the 29-year-old from Stockton, Calif., said after being asked about possibly changing his training. "You know what? I've never paid taxes in my life. I'm probably going to go to jail.

"Nobody wants to hear about that, nobody wants to hear that kind of talk or what's really going on with me," he said. "I might as well as be a kid. I've had fight after fight after fight after fight. You don't know what that does to somebody that didn't graduate high school? You don't understand."

Diaz made some strange comments after the match, saying that he retired, but then later stating that he wanted a rematch with St-Pierre or another fighter. President Dana White said he would speak to Diaz's lawyer to see if he can help with the tax issue or anything else regarding the situation.

"Nick Diaz has been in the game a long time. If you saw his pay check tonight, you wouldn't feel too sad for him," UFC president Dana White said. "At the end of the day, Nick has been in the sport forever. He wanted a shot at the title, he got a shot at the title and he got paid a lot of money for it. What's sad is he better go pay those taxes, a soon as he gets that check."

The two fighters embraced after the fight, seemingly putting their differences behind them for at least a moment. Diaz had not lost since February of 2012 and did not get a chance to take hold of St-Pierre. He only made around 40 hard strikes on St-Pierre, who had over 100, and he had no successful take downs during the match.

"He did a great job promoting the fight. Nick Diaz is a good guy," St-Pierre said. "I didn't want to fight at a boxing range because he's the best boxer in mixed martial arts. His jiu-jitsu is amazing."

Diaz made some progress in the fourth round after opening a cut on St-Pierre, but it was mostly for show, as he was able to come back to take him down after at the end of the round. Diaz has lost two fights in a row and is 1-2 in this last three bouts.

Johnny Hendricks defeated Carlos Condit, while Jake Ellenberger defeated Nate Marquardt after getting his 18th career knockout.  Chris Camozzi defeated Nick Ring in a close call, while Mike Ricci defeated Colin Fletcher in a unanimous decision. Patrick Cote did the same against Bobby Voelker, while Danny Elkins won his fifth match in a row with a first round knockout of Antonio Carvalho. Jordan Mein defeated Dan Miller, while John Makdessi took down Daron Cruickshank.