The annual UFC pay-per-view on Memorial Day weekend in Las Vegas will take place the MGM Grand Garden Arena and following the change to the main event, the UFC has released the new fight card lineup. 
The fight card is still headlined by a title fight as Renan Barao will make his second bantamweight title defense since becoming the unified champion as he is challenged by Ultimate Fighter alum T.J. Dillashaw.
In the co-main event, former heavyweight champion Junior dos Santos will return to the octagon for the first time since losing to UFC champion Cain Velasquez at UFC 166 as he will meet Stipe Miocic.
Also on the pay-per view, former UFC welterweight title challenger Robbie Lawler makes a quick return as he meets Jake Ellenberger, top ten UFC bantamweight Takeya Mizugaki faces Francisco Rivera, and the opening bout of the pay-per-view will see James Krause meet former WEC champion Jamie Varner.
The preliminary card will begin on Fight Pass with three fights and the final four prelim bouts will be shown on Fox Sports 1. The preliminary card on Fox Sports 1 will feature two recent Ultimate Fighter winners as Chris Holdsworth looks to remain unbeaten against Kyung Ho Kang and Michael Chiesa looks for his second straight win against Francisco Trinaldo.
The current UFC 173: Barao vs. Dillashaw card is below.
Main Card: (PPV – 10 p.m. ET/7 p.m. PT)
Renan Barao (32-1, 1NC) vs. T.J. Dillashaw (9-2)
Junior dos Santos (16-3) vs. Stipe Miocic (11-1)
Robbie Lawler (22-10, 1NC) vs. Jake Ellenberger (29-7)
Takeya Mizugaki (19-7-2) vs. Francisco Rivera (10-2, 1NC)
Jamie Varner (21-9-1 2NC) vs. James Krause (20-5)
Preliminary Card: (Fox Sports 1 – 8 p.m. ET/5 p.m. PT)
Michael Chiesa (10-1) vs. Francisco Trinaldo (14-3)
Tony Ferguson (14-3) vs. Katsunori Kikuno (22-5-2)
Chris Holdsworth (5-0) vs. Kyung Ho Kang (12-7, 1NC)
Al Iaquinta (8-2-1) vs. Mitch Clarke (10-2)
Preliminary Card: (Fight Pass – 6:30 p.m. ET/3:30 p.m. PT)
Anthony Njokunai (16-7, 1NC) vs. Vinc Pichel (8-1)
Sam Sicilia (12-4) vs. Doo Ho Choi (11-1)
Jingliang Li (8-2) vs. Danny Mitchell (14-5-1)