I think I may skip ordering the UFC 52 and order this the following week.
Not sure whos exactly fighting who but these are a list of the follwing participants. Source, mmaweekly.com
Tournament Participants:
Wanderlei Silva
Antonio Rogerio Nogueira
Quinton “Rampage” Jackson
Igor Vovchanchyn
Kazushi Sakuraba
Dan Henderson
Mauricio “Shogun” Rua
Yuki Kondo
Hidehiko Yoshida
Kazuhiro Nakamura
Alistair Overeem
Kevin Randleman
Vitor Belfort