Two fighters with two distinct personalities will finally meet in the Octagon when UFC welterweight champion Georges St-Pierre faces former Strikeforce welterweight champ Nick Diaz at UFC 158. Watch the Countdown to UFC 158 now!

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The battle for the welterweight belt continues as Georges St-Pierre defends his title yet again. This time he takes on Stockton bad boy, Nick Diaz.

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UFC® 158 St-Pierre vs. Diaz Pre-Fight Press Conference

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Live coverage begins at 4pm ET/1pm PT on 3/15/13

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UFC® 158 St-Pierre vs. Diaz Post-Fight Press Conference

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