With his WNO title defense coming up this Sunday, what do the odds say about World Champion Gordon Ryan and Patrick Gaudio? Their rematch will main event the Tezos WNO 20: Night of Champions, as they face off in a 30-minute no-gi bout.

Tickets are on sale now for Tezos WNO 20: Night Of Champions in Houston, TX on Oct. 1

Can’t make it to Houston? Subscribe to FloGrappling to watch WNO 20: Night Of Champions LIVE on Oct 1.

Gordon currently stands as a staggering -1800 favorite, with Gaudio a +900 underdog. The major complicating factor for Gordon's likelihood to win is his health and how much time he has been off the mat. When he is operating at his peak, Gordon is an earned -1800 favorite. However, this will be his first match in 290 days by the time it happens - one of the biggest breaks in his career yet. How will he look after being away, getting nasal surgery, and dealing with several serious medical conditions? Let that question guide your betting.

See the full Tezos WNO 20: Night of Champions betting lines here!

There's also the matter of the time limit. Gordon is a -250 favorite to finish the fight within 20 minutes (of a possible 30). While this does seem like a long time to submit Gaudio in, it's important to remember how Ryan tends to build matches over time. Despite some quick finishes to his credit, Gordon's main events tend to go a little longer so 20 minutes or longer is very much in play.

If you or someone you know is experiencing difficulties with gambling and needs help, contact the National Council on Problem Gambling at 1-800-GAMBLER.

Who do you think will win? Check out all of the action this Sunday, live from Houston, TX as the Night of Champions kicks off.