UFC 313 kicks of today at 3:30pm PT, but the main card fights don't begin until around 7pm PT. While you can watch the preliminary fights on ESPN, ESPN News, or ESPN+, the main card fights can only be streamed online through pay-per-view. If you already have an ESPN+ subscription, you can purchase the event as an add-on for $79.99.

Brazilian Alex Pereira, Russian Magomed Ankalaev to fight for UFC light heavyweight title Saturday at T-Mobile Arena in Las Vegas.

UFC light heavyweight champion Alex Pereira puts his title on the line against first-time challenger Magomed Ankalaev in the main event at UFC 313 at T-Mobile Arena in Las Vegas on Saturday night. Pereira,

SportsLine's Daniel Vithlani reveals his picks for the UFC 313: Pereira vs. Ankalaev fight card from T-Mobile Arena in Las Vegas on Saturday

Pereira vs. Ankalaev will be available through pay-per-view in the US on ESPN+. ESPN+ subscribers can opt to add it on to their monthly plan ( click here to see how ), but note that ESPN+ PPV coverage of the fight only applies to the main card matches that start at 10 p.m. ET and it's a $79.99 add-on to the monthly subscription.