The Nevada State Athletic Commission at its Thursday meeting handed out referee and judging assignments for next week’s UFC 155 main event.

Veteran referee Herb Dean has been assigned to officiate the UFC heavyweight title fight between champion Junior Dos Santos (15-1 MMA, 9-0 UFC) and former champ and top contender Cain Velasquez (10-1 MMA, 8-1 UFC). Glenn Trowbridge, Tony Weeks and Marcos Rosales have been tapped as the three judges for the bout.

Dean, the reigning “Best Referee” winner from the 2011 World MMA Awards, most recently reffed a title fight earlier this month at UFC on FOX 5 in Seattle when he was the third man in the cage for the lightweight title fight between champ Benson Henderson and Nate Diaz.

UFC 155 takes place Dec. 29 at MGM Grand Garden Arena in Las Vegas. The five-fight main card airs live on pay-per-view. Preliminary-card fights air on FX and stream on Facebook.

Dean got the nod for the main event over fellow veteran eligible officials Yves Lavigne and Steve Mazzagatti.

Trowbridge, Weeks and Rosales were picked from a judging pool that also included Adelaide Byrd, Patricia Morse-Jarman, Junichiro Kamijo and Cecil Peoples.

In title fights that have gone the distance, most recently, Trowbridge worked Luke Rockhold’s Strikeforce middleweight title defense against Tim Kennedy in July. Weeks was a judge for the Georges St-Pierre vs. Carlos Condit welterweight title fight at UFC 154 this past month in Montreal. And Rosales handed out a 50-43 score for Henderson over Diaz at UFC on FOX 5 on Dec. 8.

For more on UFC 155, stay tuned to the UFC Rumors section of the site.

(Pictured: Herb Dean)