UFC Hall-of-Fame athlete Georges St. Pierre is set to face Demian Maia in a grappling match at UFC Fight Pass Invitational 6 this December 14th. The two UFC veterans will compete under modified rules in what will be their first meeting under any ruleset. Demian confirmed the matchup this morning on Twitter.

Every now and then, something comes up that still does really motivate you.
Grappling @GeorgesStPierre will be a huge challenge & great motivation.
You GSP are one of the greatest competitors ever, whom I respect a lot. I’m game! Looking forward to competing at @ufc invitational.

— Demian Maia (@demianmaia) July 20, 2023

Georges is a two-weight world champion in the UFC, winning titles at both welterweight and middleweight before his retirement. "Rush" is a black belt and long-time disciple of John Danaher, and has trained regularly with grapplers like Gordon Ryan for many years. This is his first action since he vacated the UFC middleweight championship after winning it with a rear naked choke over Michael Bisping.

Georges was originally announced for the event on July 6th, after the UFC Fight Pass Invitational 4 event.

GSP IS BACK IN ACTION!

He’ll compete at #FPI6 on December 14th live on @UFCFightPass! pic.twitter.com/FVlgw6Dtrf

— UFC (@ufc) July 6, 2023

Demian Maia is a long-time UFC welterweight contender, a fifth-degree black belt, and an ADCC champion who is one of the best grapplers to ever convert to MMA. Demian, now retired from MMA, was one of the most successful submission artists in UFC history, submitting eleven opponents and competing for multiple world championships. Since his finish with the UFC, he has returned to submission grappling, recently facing fellow UFC veteran Cowboy Oliveira in super fight action.