At the final press conference for UFC 245, Colby Covington entertained a massive throng of assembled media for nearly an hour. Kamaru Usman spoke to a much smaller gathering for about 10 minutes. Usman might be the welterweight champion, but his opponent is clearly the attraction in the main event on Saturday night. Their title bout at T-Mobile Arena in Las Vegas tops a stacked event, with the main UFC 245 fight card starting at 10 p.m. ET. The challenger Covington (14-1) has carried the promotion with his outlandish interviews, while the champion Usman (15-1) insists he will make his statement in the octagon in the first defense of his belt.

Usman is a -175 favorite (risk $175 to win $100), while Covington is priced at +155 in the latest Usman vs. Covington odds. In the co-main event of UFC Las Vegas, featherweight champ Max Holloway (-170) takes on top-rated challenger Alexander Volkanovski (+150). Before making any UFC 245 picks of your own, check out what SportsLine MMA analyst Kyle Marley has to say. 

Marley won the first-ever "ToutMaster" UFC betting contest sponsored by MMAOddsBreaker and is in contention to win this year's contest. He also appears regularly on multiple MMA betting and DFS shows. Over the past year, $100 bettors who have followed Marley's picks are up more than $19,000. 

Last week at UFC on ESPN 7, Marley told SportsLine members that Ben Rothwell (-140) would stop Stefan Struve (+120) in a battle of veteran heavyweights. Rothwell delivered with a second-round submission to give Marley's followers another winner. What's more, at the much-anticipated UFC 244 card, Marley accurately predicted that Jorge Masvidal (-140) would defeat Nate Diaz (+120) in a welterweight clash for the "BMF" title. Anyone who has followed him is way up.

With UFC 245 fast approaching, Marley has carefully studied every matchup on the card, identified the best value in the UFC odds and released his MMA picks for every single fight. He's sharing those selections only over at SportsLine. 

Marley knows the UFC 245 main event should serve as a backdrop for Usman and Covington to settle a beef that appears to be anything but an orchestrated conflict for marketing purposes. The fighters had a backstage scuffle at UFC 223 and another confrontation at a Las Vegas casino buffet following UFC 235 after Usman became the champion. 

The 32-year-old Usman is generally regarded as a well-spoken, humble fighter who is usually respectful toward his opponents. He became the first African champion in the promotion's history when he dominated Woodley in a five-round decision. But Usman has been unable to avoid a war of words and blows with Covington, who appears to be succeeding in his quest to become the biggest heel in UFC history.

The fighters have similar, wrestling-based styles that are aided by opportunistic strikes and super-human endurance. Marley can help you make the top Usman vs. Covington picks for Saturday's mega-fight.

We'll reveal one of Marley's UFC 245 predictions here: He is backing Amanda Nunes (-300) to win her title defense against Germaine De Randamie (+240) in a bantamweight clash on the main card.

Nunes (18-4) continues her quest to enhance her legacy as one of the top female MMA fighters of all-time. She has won nine straight bouts and will be making the fifth defense of her bantamweight title. De Randamie (9-3), the top-ranked contender, has won six consecutive bouts. She is coming off a 16-second knockout of rising prospect Aspen Ladd in July.

"Nunes is the best women's MMA fighter of all-time, and I don't see anybody taking her belt from her for a long time," Marley told SportsLine.

Marley also has strong picks for Usman vs. Covington, Volkanovski vs. Holloway and every other bout on the UFC 245 card. You need to see them before locking in any UFC picks of your own.

Who wins Usman vs. Covington? And how exactly does each fight end? Visit SportsLine now to get detailed picks on every fight at UFC 245, all from the expert who's up more than $19,000 on MMA in the past year, and find out.