GSP vs. Diaz is official for UFC 158.
The UFC announced Georges St-Pierre will defend his UFC welterweight title against Nick Diaz at UFC 158 on March 16 at the Bell Centre in Montreal.
The GSP title defense is just one of several welterweight matches that were announced Saturday night.
Rory MacDonald will try to avenge the lone loss of his MMA career when he squares off against Carlos Condit. MacDonald lost to Condit via third-round TKO at UFC 115 on June 12, 2010 in Vancouver.
Johny Hendricks, who voiced his displeasure with St-Pierre for wanting to fight Diaz next this past Monday on The MMA Hour, will battle Jake Ellenberger. Hendricks has won his five previous fights, including a 46-second knockout of Martin Kampmann in his last Octagon appearance at UFC 154, while Jake Ellenberger has won four of his previous five fights.
The last fight that was announced will be a rematch between Alessio Sakara and Patrick Cote. Cote got the win at UFC 154 when Sakara was disqualified for illegal strikes to the back of Cote's head.