After announcing the coaches for The Ultimate Fighter: The Smashes Wednesday night, the UFC made the next coaches known for the upcoming season of the U.S. version.

Heavyweights Shane Carwin and Roy Nelson will begin filming the reality series this August. The season will debut on FX in September, going back to the taped format that TUF fans are familiar with.

“This is going to be a very interesting dynamic between these two heavyweights,” UFC president Dana White said in a press release. “I guarantee it’ll make for great TV.”

Carwin was recently cleared to resume training after back surgery. He is 12-2 and coming off a loss to Junior dos Santos last year.

“Coaching TUF is something I asked for and really wanted to do,” Carwin said. “I also asked to coach against Roy Nelson. The fans know how I like to conduct myself both in and out of the Octagon. But I cannot respect a man like Roy Nelson – because he shows no respect himself.”

Nelson, who won a season of TUF, sports a 17-7 record and recently knocked out Dave Herman. He joins Forrest Griffin, Rashad Evans, Michael Bisping and Matt Serra as former winners to return to coach.

“When I found out I was going to be a TUF coach I was like, ‘Wow, me!’ When I found out I was coaching against Shane Carwin, I was so happy to get a chance to compete against this guy.”