"Top Chef" alum Marcel Vigneron will be duking it out with Richard Blais in the premiere episode of Bravo’s new "Top Chef Duels"
"Top Chef" alum Marcel Vigneron will be duking it out with Richard Blais in the premiere episode of Bravo's new "Top Chef Duels" on Aug. 6. (Photo by Nicole Wilder/Bravo) ( Bravo )