Video: Sneak peek of Chael Sonnen and Wanderlei Silva's 'TUF: Brazil 3' brawl

In a little more than a week, “The Ultimate Fighter: Brazil 3? debuts on UFC Fight Pass, and an on-set brawl between head coaches Chael Sonnen and Wanderlei Silva has been the biggest storyline.

In its promotional video for the latest season of the long-running reality series, which debuts March 9, the UFC gives us a sneak peek of what led to the rivals’ eventual confrontation.

Check it out above.

UFC President Dana White first mentioned the fight in January, and a few week later, Team Sonnen assistant coach Vinny Magalhaes told MMAjunkie there was nothing staged about the confrontation. However, officials won’t say how serious the fight was until the show debuts.

With that unsanctioned meeting now apparently over, catch Sonnen (28-14-1 MMA, 7-6 UFC) and Silva (35-12-1 MMA, 5-7 UFC) in a sanctioned fight on May 31, when they’re slotted to headline a UFC Fight Night event in Brazil.

For more on “UFC Fight Night: Sonnen vs. Silva,” stay tuned to the UFC Rumors section of the site.