Round 1: No touch of gloves in this one. St-Pierre lands a leg kick. Diaz presses forward and St-Pierre puts him on his back. St-Pierre works inside Diaz’ full guard. St-Pierre lands short punches to the body. Diaz turns. Diaz rolls and tries to get a takedown. St-Pierre sprawls and takes Diaz’ back. St-Pierre lands right hands. St-Pierre gains side control. Diaz works back to half guard. St-Pierre postures up and delivers two hard elbows. St-Pierre is controlling Diaz on the ground. Diaz tries to stand but gets taken back to the canvas. Diaz stands only to be pulled back down again. St-Pierre takes Diaz’ back. St-Pierre lands short punches. Diaz stands but St-Pierre is on him. St-Pierre elevates Diaz and slams him to the canvas. St-Pierre lands a knee to the body at the bell. MMAWeekly scores the round 10-9 for St-Pierre.
Round 2: St-Pierre lands a leg kick. Diaz moves forward but St-Pierre drops down and takes him down. St-Pierre lands an elbow. He stands and delivers two right hands before dropping back down into Diaz’ guard. Diaz rolls. St-Pierre knees him to the body and lands right hands to the side of Diaz’ head. St-Pierre switches sides and lands left hands. Diaz tries to stand but St-Pierre takes him down again. The champion delivers a huge elbow. Diaz rolls and tries to stand but St-Pierre drags him down. Diaz scrambles to his feet. Diaz taunts St-Pierre. St-Pierre answers with a superman jab. They exchange right hands. St-Pierre lands leg kicks. He jumps in with a left hand at the bell. MMAWeekly scores the round 10-9 for St-Pierre. Diaz is talking to St-Pierre after the round.
Round 3: Diaz takes the center of the Octagon. He taunts St-Pierre. St-Pierre looks for a high kick but misses. He lands a stiff jab and goes back to working leg kicks. St-Pierre goes for a takedown and Diaz stuffs it. St-Pierre ducks under a Diaz jab and takes him to the ground. Diaz tries to stand. He works his way over to the fence and stands. St-Pierre lets go and backs away. St-Pierre lands his jab. He works for a takedown but Diaz stuffs it. Diaz lands a hard shot to the body of the champ. St-Pierre lands an inside leg kick. Diaz answers with a kick to the outside of the leg. Diaz misses with a high kicks. He and St-Pierre exchange misses with spinning kicks. St-Pierre lands a combination and works for a takedown. Diaz, again stuffs it. St-Pierre lands a hard straight right hand. Diaz lands a left hand. Diaz pushes forward and lands a right hand. St-Pierre takes him down. St-Pierre postures up and lands a right hand. Diaz rolls. St-Pierre takes his back. St-Pierre lands a right hand. The bell sounds and Diaz throws a punch a St-Pierre from his back after the round.
Round 4: St-Pierre’s corner tells him to take Diaz down. St-Pierre opens with an inside leg kick. St-Pierre steps in with his jab. Diaz lands a right hand. St-Pierre looks for a takedown and Diaz shakes it off. St-Pierre goes back to working his jab. Diaz defends another takedown attempt for St-Pierre. Again, Diaz stops the takedown of St-Pierre. St-Pierre presses Diaz against the cage. Diaz lands to the body with knees. Diaz lands a combination on the break. Diaz is walking on the outside with his hands down. St-Pierre hits him with a jab. St-Pierre drives forward and takes Diaz down with two minutes remaining in the round. St-Pierre lands soft right hands. Diaz works his way to the cage and stands. St-Pierre elevates him and slams Diaz to the canvas. Diaz rolls and stands along the cage. St-Pierre looks up at the clock. St-Pierre drags him back down. The round ends. MMAWeekly scores the round 10-9 for St-Pierre.
Round 5: Diaz lands a leg kick. He moves forward and lands a left hand. St-Pierre lands a jab the snaps Diaz’ head back. They clinch. Diaz delivers knees to the body of St-Pierre. St-Pierre answers with one of his own. They exchange knees to the body. They separate. St-Pierre lands his jab. Diaz throws a high kick and slips. St-Pierre seized the opportunity and keeps him down. St-Pierre lands left hands. He has Diaz’ back. Diaz rolls out of it but St-Pierre maintains top position. Diaz scrambles to his feet. He lands two leg kicks. St-Pierre engages the clinch. Diaz lands multiple punches to the body of the champion. He lands knees to the body. Diaz presses St-Pierre against the cage. St-Pierre circles away. They exchange jabs and St-Pierre drives forward and takes Diaz down. St-Pierre postures up and lands punches. The round ends. Diaz raises St-Pierre’s hand. In his post-fight interveiw, Diaz said he’s done with mixed martial arts.
The judges score the fight for St-Pierre by unanimous decision. All three scorecards read 50-45.