The winner of Diaz-Miller will likely become the No. 1 contender for the UFC lightweight title.
Also confirmed for the FOX card will be a heavyweight tilt between sluggers Pat Barry and Lavar Johnson.
The current UFC on FOX 3 lineup is below.
Nate Diaz vs. Jim Miller
Pat Barry vs. Lavar Johnson
Rousimar Palhares vs. Alan Belcher
Darren Uyenoyama vs. John Dodson
Mike Massenzio vs. Karlos Vemola
John Hathaway vs. Pascal Krauss
Danny Castillo vs. John Cholish
Louis Gaudinot vs. John Lineker
Tony Ferguson vs. Dennis Hallman