Here is how the May 23rd card is looking so far according to rumors:
Brock Lesnar 3-1-0 vs. Frank Mir 12-3-0
Matt Hughes 43-7-0 vs. Matt Serra 16-5-0
Frank Edgar 9-1-0 vs. Sean Sherk 37-3-1
James Irvin 14-5-1 vs. Drew McFedries 7-6-0
Phillipe Nover 6-1-1 vs. TBD
Houston Alexander 8-4-1 vs. Andre Gusmao 5-1-0
David Kaplan 3-2-0 vs. George Roop 8-5-0