Nelson is more than a 2-1 underdog against the former heavyweight champion Saturday at UFC Fight Night 75. Barnett, meanwhile, checks in as a 3-1 odds-on favorite.
Saitama Super Arena in Saitama, Japan hosts the festivities.
Here are the lines for tomorrow’s fights:
Preliminary Card:
Roger Zapata -120
Shinsho Anzai -110Keita Nakamura +210
Li Jingliang -280Yusuke Kasuya +250
Nick Hein -350Naoyuki Kotani +220
Kajan Johnson -300Main Card:
Teruto Ishihara +220
Mizuto Hirota -300Katsunori Kikuno +190
Diego Brandao -240George Roop +190
Takeya Mizugaki -240Chico Camus +250
Kyoji Horiguchi -350Uriah Hall +350
Gegard Mousasi -500Roy Nelson +220
Josh Barnett -300