Jake Shields and Martin Kampmann will be co-headlining this Saturday’s UFC 121 event; Brock Lesnar vs. Cain Velasquez.

Shields will be making his debut fight into the UFC. He previously fought for Strikeforce,  and was the middleweight champ at one time. He was last seen making a unanimous decision over Dan Henderson at Strikeforce: Nashville. His current record is 25-4-1.

Martin “The Hitman” Kampmann is coming off a unanimous decision win as well, over Brazilian, Paulo Thiago at UFC 115. Seven of Kampmann’s wins have come by way of KO. His current record is 17-3.