Chael Sonnen has announced that he will move up to light heavyweight to fight Forrest Griffin on December 29th.
Sonnen lost to Anderson Silva last month as the Brazilian again successfully defended his UFC Middleweight championship, and has decided to move up a weight class in order to face Griffin, who most recently defeated Tito Ortiz.
The UFC is yet to officially confirm the bout, which will likely be part of the UFC 155 card, but Sonnen insists the pay-per-view bout will go ahead as he sets his sights on a future title shot against current UFC light heavyweight champion Jon Jones.
"On December 29th I will be taking on Forrest Griffin," Sonnen told UFC Tonight.
"That fight will be at light heavyweight, absolutely.
"I could go up to 205 and take Jon Jones' belt away like I could take candy from him, the little punk kid. But there's something to be said for earning your shot and in December I'm going to go through Forrest to do it."
Sonnen, 35, has met Griffin once before, losing via submission in 2003 on the IFC: Global Domination card.
The American added: "He's beat two world champions in his last three fights. He's a guy I've fought before - I lost to him - and he's become a friend.
"His legacy is set in stone, but he still gets overlooked."