A long-rumored middleweight bout between Lyoto Machida and C.B. Dollaway was made official by UFC female bantamweight champion Ronda Rousey Wednesday.

Set for December 20 from Barueri, Sao Paulo, Brazil, UFC Fight Night 58 is expected to air on FOX Sports 1.

Machida (21-5) is coming off a decision loss to Chris Weidman for the UFC title, dropping his overall Octagon mark to 13-5.

Dollaway (15-5) sports an unbeaten record when competing outside the U.S., going 2-0 in Brazil and netting wins in Germany and Australia. He has won four of his last five, including a 39-second knockout of Cezar Ferreira.

So far, this is the only bout announced for the card.