Munoz imposed his vicious ground and pound skills on Leben early and often, eventually leading to an eye injury that prevented "The Crippler" from continuing.
Leben, still a legitimate 185-lb. fighter, will look to bounce back from his loss in his very next fight.
The following slides display four fights that Chris Leben could take next.
Lets take a look.
Michael Bisping and Jason "Mayhem" Miller will square off at the Ultimate Fighter 14 Finale on December 3rd, 2011. It's likely that the winner will eventually move on to earn a shot at the middleweight championship.
However, similar to Leben, the loser of Bisping and Miller will be looking for a fight to help get their career back on track.
It's very likely fans could see Leben squaring off with Bisping or Miller at some point in 2012.
After being off for more than a year, Alan Belcher made his return to the Octagon when he took on Jason MacDonald at a Fight Night in September of 2011.
Belcher has now won three consecutive fights and appears to be on a fast track to the top of the middleweight division.
However, Belcher is not yet an elite 185-lb. fighter and could find himself squaring off with Leben in the near future.
Demain Maia may very well be the best fit for Leben, as he was also beaten by Mark Munoz at UFC 131 in Vancouver, Canada.
Maia has won three of his last four fights, including victories over Kendall Grove and Jorge Santiago.
Maia vs. Leben could be a huge draw for fans, as Maia is one of the most talented submission specialists in the UFC and Leben is one of the hardest hitters.
While many fans may believe Yushin Okami is a level above Leben, he is coming off a lopsided defeat to Anderson Silva at UFC 134.
Okami is one of the more well-rounded middleweight fighters in the UFC today, as he can either take his opponent to the judge's scorecards or knock them out.
Fans shouldn't be surprised if they see Leben and Okami meeting inside the octagon in the new year.