Former UFC fighter C.B. Dollaway will move to Japanese MMA promotion RIZIN for his next fight, challenging Jiri Prochazka for the promotion’s Light Heavyweight Championship at RIZIN 20.

The fight will take place on New Year’s Eve at Saitama Super Arena in Saitama, Japan. It will be one of the three championship bouts on the card.

Dollaway won season seven of the UFC’s TV series The Ultimate Fighter. He fought in the promotion for a decade, getting a record of 11-9 before his departure.

Jiri Prochazka has attained a record of 9-1 since joining RIZIN in 2015, avenging his singular loss earlier this year against King Mo, winning his championship in the process.

Prochazka has yet to defend his belt since winning it in April.