Igor Vovchanchyn will fight Kazuhiro Nakamura in the alternate bout of PRIDE's Middleweight Grand Prix, the Japanese mixed martial arts promotion announced Wednesday.

Both Vovchanchyn and Nakamura bowed out of the 205-pound 16-man tournament in June's quarterfinal round.

If one of the two semifinal Grand Prix winners cannot continue, the Vovchanchyn-Nakamura winner would earn a shot at the prestigious belt.

Rumors of Tank Abbott's PRIDE debut were made official as well Wednesday when it was announced he will face popular Japanese judoka Hidehiko Yoshida.

These fights will go on the under card of an event that's shaping up to be a spectacular showcase. In the GP semifinals, Wanderlei Silva faces Ricardo Arona and Alistair Overeem takes on Mauricio Rua. The night's main event belongs to the heavyweight championship showdown between current PRIDE champion Fedor Emelianenko and No. 1 contender Mirko Filipovic.

Wanderlei Silva vs Ricardo Arona
Alistair Overeem vs Mauricio Rua
Fedor Emelianenko vs Mirko Filipovic
Igor Vovchanchyn vs Kazuhiro Nakamura
Hidehiko Yoshida vs Tank Abbott
Fabricio Werdum vs Roman Zentsov