Season 4 of The Ultimate Fighter has already started taping in Las Vegas, Nevada.

The Boston Herald reports, “The Ultimate Fighter: The Comeback is set to debut Thursday, Aug. 17 at 10 p.m. on Spike. The fourth season will focus on fighters whose dream of winning a UFC title have never come true… [the fighters] are already gathered in Las Vegas for production of the series, which began yesterday.”

The Boston Herald further reported that instead of having coaches, TUF 4 will have advisors for the 16 fighters, and these advisors will include Randy Couture, Georges St. Pierre, and Mark DellaGrotte.

The Herald also confirmed previous MMAWeekly reports that the fourth season will feature 16 MMA veterans (eight middleweights and eight welterweights) who will be competing for a UFC title shot and a “six-figure contract.”

If you’ve been checking MMAWeekly’s Rumors section regularly, then you already know the names of some of the fighters who may be competing in the fourth season.

MMAWeekly has learned of a few additional names who might be on the show, though none of them have been confirmed at this point, and they are still just rumors.

In the middleweight division, the eight fighters are rumored to be Jorge Rivera, Patrick Cote, Charles McCarthy, Gideon Ray, Mark Weir, Travis Lutter, Edwin Dewees, and 48-year-old UFC veteran Keith Hackney.

In the welterweight division, the eight fighters are rumored to be Matt Serra, Chris Lytle, Shonie Carter, Rich Clementi, Mikey Burnett, Pete Spratt, Nick Diaz, and Din Thomas.

Tony Fryklund and Jay Hieron were, at one point, rumored to be part of TUF 4, but it is now believed that Fryklund and Hieron have each signed with another MMA organization instead.

Frank Trigg was also rumored to be a potential TUF 4 cast member, but Trigg announced his retirement from active MMA competition last month.