Hall of Fame trainer Freddie Roach is about to enter new territory.

Currently still training some of the biggest names in boxing, the veteran coach will make his UFC debut next Saturday night in New York City - when he works the corner of MMA legend Georges St-Pierre, who returns from a four-year absence to face middleweight champion Michael Bisping in the main event of UFC 217.

Roach is very good friends with St-Pierre and would always help him when possible.

This time around it was different, as Roach was an active member of the team and a big part of St-Pierre's preparations for the comeback.

If St-Pierre comes out on top, Roach would likely continue forward forward with his MMA corner work.

"I've never been an elite MMA trainer, but Georges made me promise I would work his corner and I'm holding up to that," Roach told ESPN.

"This might be a little different than boxing, but it is combat sports and I know how to fight. I used to be a wrestler in high school. I was never a great wrestler but I have an idea on it and watching it during camp has given me a better idea. Everyone in the corner is real friendly with one another and I will give the best information I can in there on fight night, and it won't be strictly boxing."

And of course the fight that Roach would love to see for St-Pierre - is a big money showdown with the biggest name in the UFC, Conor McGregor.

"McGregor is a cocky kid and he did OK in his fight against Floyd Mayweather. I would just say OK," Roach said. "I would enjoy that fight and I would like to see that fight happen. It's possible.

"Right now, we're just concentrated on this fight. The thing is, we have a three-fight contract with [UFC president Dana White] and we have to win every one for the contract to go on. If everything goes well and Georges wants to retire at the end, that's up to him. If he still has fight in him, and if I still have fight in me, we'll go on from there. I'm sure he'll receive many offers. Bigger and better offers."