Before UFC 100: The Modern Welterweight Era was Born at UFC 46

That notion was quickly evaporated when Matt Serra turned the entire MMA community on its head with the biggest upset in UFC history.

On April 7, 2007, at UFC 69, TUF 4 finale winner Matt “The Terror” Serra rocked Georges St Pierre by technical knockout at 3:25 of the first round to become the latest UFC welterweight champion.

In loss, St. Pierre was forced to take a fight with Josh Koscheck at UFC 74 while Serra got to bask in the glory, albeit momentarily.

Matt Serra was supposed to defend his title against Matt Hughes at UFC 79 but injuries prevented him from doing so. In stepped St-Pierre, fresh off his win over  Koscheck.

St. Pierre would defeat Hughes for a second time to claim the interim welterweight title on Dec. 29, 2007 and

While a second win over Hughes was rewarding, the only thing Georges St-Pierre had on his mind was beating Serra to unify the two belts and once again be crowned undisputed welterweight champion.

He got that chance April 19, 2008 at UFC 83 which took place in his hometown of Montreal, Quebec. The rematch looked nothing like their first fight.

In an effort to avoid Serra’s knockout power, St. Pierre took Serra down at will and pounded him on the ground. The referee finally intervened at 4:45 of Round Two to stop the barrage of knees St. Pierre was delivering to the body of Serra.

St. Pierre has had defended his belt twice since. The first defense came against Jon Fitch at UFC 87. Fitch was gritty in defeat but was completely outworked by St. Pierre in route to a lopsided decision loss.

In one of the most hyped fights in UFC history, B.J Penn moved up to welterweight to exact revenge upon St. Pierre at UFC 94. It didn’t happen, not in the least. St. Pierre trounced Penn through four rounds until Penn was forced to throw in the towel and sit dejected on his stool.

That brings us to UFC 100 where St. Pierre will look to defend his belt for a third time. While many feel that St. Pierre has already surpassed Matt Hughes as the best welterweight in UFC history, St. Pierre must still live up to the Matt Hughes’s record of defending the belt seven times.

You're currently logged into Facebook

Do you want to share your Bleacher Report activity on Facebook?