![Arguably THE greatest Upset in MMA history. When Matt Serra slayed Prime GSP to become the UFC Welterweight Champion of The World at UFC 69. : r/MMA Arguably THE greatest Upset in MMA history. When Matt Serra slayed Prime GSP to become the UFC Welterweight Champion of The World at UFC 69. : r/MMA](https://external-preview.redd.it/fWY5zZniSWb7hQBfxOQERaR59tEExjuubAFxgRVadNU.jpg?width=640&crop=smart&auto=webp&s=50d9344c650910b4270e48734c9c2e815ac0c02a)
Arguably THE greatest Upset in MMA history. When Matt Serra slayed Prime GSP to become the UFC Welterweight Champion of The World at UFC 69. : r/MMA
Georges St-Pierre versus Matt Serra 2 📺⏪ | GSP dominated from the 🔝🔒 Reclaiming the title👊🏻🏆 #OnThisDay Georges St-Pierre versus Matt Serra 2 📺⏪ | By UFC | George Saint Pierre entering
UFC - ufc83_11_st-pierre_vs_serra_002.jpg MONTREAL - APRIL 19: Georges St-Pierre (black tight shorts) def. Matt Serra (black/camo sprawl shorts) - TKO - 4:45 round 2 during the UFC 83 at Bell Centre on
On This Day: GSP vs Serra 2 | #OnThisDay in 2008: Georges St-Pierre finally got his revenge and took his welterweight title back! | By UFC | Facebook
![Even the mariachi band thought Matt Serra had no chance at beating Georges St-Pierre at UFC 69 10 years ago : r/MMA Even the mariachi band thought Matt Serra had no chance at beating Georges St-Pierre at UFC 69 10 years ago : r/MMA](https://external-preview.redd.it/QgglGdE4ZXabsOP9lw9EwqGREy1Qqsla5_XCLuexbUo.jpg?auto=webp&s=dcc7420d7ae536a3d30c53c12a3092cdec727aa9)
Even the mariachi band thought Matt Serra had no chance at beating Georges St-Pierre at UFC 69 10 years ago : r/MMA
![MMA History Today on X: "Many believed that St-Pierre would hold the Welterweight title for a long time. Matt Serra stopped that conversation immediately. GSP climbed the ranks & earned a rematch MMA History Today on X: "Many believed that St-Pierre would hold the Welterweight title for a long time. Matt Serra stopped that conversation immediately. GSP climbed the ranks & earned a rematch](https://pbs.twimg.com/media/D4jqkIUWwAAfaHc.jpg)
MMA History Today on X: "Many believed that St-Pierre would hold the Welterweight title for a long time. Matt Serra stopped that conversation immediately. GSP climbed the ranks & earned a rematch
![Road to Toronto: Matt Serra knocks out Georges St. Pierre in the upset of the century - MMAmania.com Road to Toronto: Matt Serra knocks out Georges St. Pierre in the upset of the century - MMAmania.com](http://cdn1.sbnation.com/imported_assets/707759/d72613f4-1422-0e8c-9ae7b028b4cba836.jpg)
Road to Toronto: Matt Serra knocks out Georges St. Pierre in the upset of the century - MMAmania.com
![UFC 84 : Serra vs St-Pierre: Amazon.fr: Matt Serra, Georges St-Pierre, Rich Franklin, Travis Lutter, Michael Bisping, Charles McCarthy, Matt Serra, Georges St-Pierre: DVD et Blu-ray UFC 84 : Serra vs St-Pierre: Amazon.fr: Matt Serra, Georges St-Pierre, Rich Franklin, Travis Lutter, Michael Bisping, Charles McCarthy, Matt Serra, Georges St-Pierre: DVD et Blu-ray](https://m.media-amazon.com/images/I/61bnt30R2dL._AC_UF1000,1000_QL80_.jpg)