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The UFC 170 weekend has arrived, and the festivities have just begun. In the video above, watch the UFC 170 pre-fight press conference. The conference will begin promptly at 4pm/1pm ET/PT.

Saturday night’s event is headlined by the UFC Women’s Bantamweight champion bout between Ronda Rousey and Sara McMann. This bout is historic in that it will serve at the first ever fight between two Olympians in MMA.

The co-main event is a Light Heavyweight battle between Daniel Cormier and Patrick Cummins. Initially, former UFC Light Heavyweight champion, Rashad Evans, was set to face off against Cormier, but he was injured 10 days before the fight. Instead of scrapping the bout, the UFC opted to replace Evans with Cormier’s former wrestling training partner, Patrick Cummins.

If you have yet to watch the countdown show, check out all three segments below:

Ronda Rousey vs Sara McMann

Daniel Cormier vs Patrick Cummins

Demian Maia vs Rory MacDonald

Check out the full UFC 170 card below:

Main Card

Ronda Rousey vs. Sara McMann

Daniel Cormier vs. Pat Cummins

Rory MacDonald vs. Demian Maia

Mike Pyle vs. T.J. Waldburger

Robert Whittaker vs. Stephen Thompson

Fox Sports 1 Prelims

Alexis Davis vs. Jessica Eye

Raphael Assuncao vs. Pedro Munhoz

Cody Gibson vs. Aljamain Sterling

Zach Makovsky vs. Josh Sampo

Fight Pass Prelims

Rafaello Oliveira vs. Erik Koch

Ernest Chavez vs. Yosdenis Cedeno