WNO: Gordon Ryan vs Ronaldo Junior is certain to be the biggest event of 2020 so far, and the main event is only one of three huge matches at the top of the card. 

In the night's co-main event, second-ranked Garry Tonon will meet up with fourth-ranked Dante Leon in a 15-minute, F2W rules match. 

Garry won by submission last time, but Dante has been on a tear since with a gold medal at No-Gi Worlds and wins over Isaque Bahiense and Renato Canuto. 

I reached out to some of the sports biggest names to see who they picked in these matchups:

Vagner Rocha

"Garry vs Dante will be exciting, but I don't see it being any different from their match at ADCC. Garry has too many tools, and styles make fights. Garry's ability to create scrambles and subs in the mix makes him very dangerous to anybody who plays along."

Pick: Garry Tonon

Tanquinho

"Great matchup, both super talented athletes. It should be a high paced match, similar to Garry vs Davi Ramos. In this rematch, Dante should come a little more prepared and aware of Garry's sub attacks. The longer the match goes, the more chances Dante has, especially if he can take the back. Garry is still the favorite in my eyes. In sub-only rules that reward the person with more submission attacks, my prediction is Garry will win using his experience to get multiple submission entries."

Pick: Garry Tonon

Matheus Diniz

"Amazing match, for me Garry is the most fun person to watch compete. But Dante is amazing, very technical, so strong and has a lot of submissions. I think if Dante takes control of the match and doesn't allow Garry to get his game going, he will win. I pick Dante for this one."

Pick: Dante Leon

Robert Drysdale

"I think Garry has improved a lot in terms of his wrestling and overall timing, but Dante never stops surprising me either. I'm going with Garry because his last few fights have really impressed me."

Pick: Garry Tonon

Watch WNO: Gordon Ryan vs Ronaldo Junior Live On Demand On FloGrappling July 31st