Lightweight #3 contender Rafael dos Anjos will step in the octagon for the forth time since April to face long-absent Nate Diaz.
Diaz fought for the last time on November 30, 2013, when he defeated Gray Maynard via TKO in the first round.
UFC Fight Night Phoenix is the first ever UFC event in Arizona.
The main event is set to be a 5-round heavyweight bout between Junior dos Santos (#2) and Stipe Miocic (#4).
For more info, go to ufc.com.