MAIN CARD (Pay-per-view, 10 p.m. ET) Champ Jose Aldo (145) vs. Conor McGregor (145) – for featherweight title Champ Chris Weidman () vs. Luke Rockhold (185) – for middleweight title Yoel Romero (185) vs. Ronaldo Souza (186) Demian Maia (170) vs. Gunnar Nelson (170) Max Holloway (146) vs. Jeremy Stephens (145) PRELIMINARY CARD (FOX Sports 1, 8 p.m. ET) Urijah Faber (136) vs. Frankie Saenz (135) Jocelyn Jones-Lybarger (116) vs. Tecia Torres (116) Warlley Alves (171) vs. Colby Covington (170) Kevin Lee (156) vs. Leonardo Santos (156) PRELIMINARY CARD (UFC Fight Pass, 6:30 p.m. ET) Magomed Mustafaev (155) vs. Joe Proctor (155.5) John Makdessi (156) vs. Yancy Medeiros (155.5) Marcio Alexandre Jr. (171) vs. Court McGee (170)