UFC to cast undefeated fighters in next season of 'TUF'

Someone's "0" will have to go on the next season of "The Ultimate Fighter."

The UFC aims to cast the 27th season of its flagship program - dubbed "Battle of the Undefeated" - with featherweights, lightweights, and welterweights that haven't tasted defeat in a minimum of three professional fights, according to a Thursday release:

A new champion is unlikely to emerge from the show, as the UFC has already crowned titleholders in each of the three divisions. The season's casting call is set for Dec. 12 in Las Vegas, with filming to begin at the top of 2018. A premiere date has not yet been confirmed.

"TUF 26" is still ongoing and will end with the UFC's inaugural women's flyweight title bout in Las Vegas on Dec. 1.