A pair of lightweights have been added to the UFC 184 lineup, as Tony Ferguson collides with Yancy Medeiros.

Set for February 28 from Los Angeles and the Staples Center, two UFC world titles will be on the line. Chris Weidman defends his middleweight belt vs. Vitor Belfort, and Ronda Rousey puts her female bantamweight gold up for grabs vs. Cat Zingano.

Ferguson (17-3) has strung together a four-fight win streak and is 7-1 overall inside the Octagon, including a victory in the Season 13 finals of The Ultimate Fighter. He submitted Abel Trujillo in his last appearance.

Medeiros (11-2) scored a victory over Joe Proctor last year, improving his UFC mark to 2-2 with one no-contest.

Below is the current lineup:

UFC Middleweight Championship
Chris Weidman (c) vs. Vitor Belfort

UFC Female Bantamweight Championship
Ronda Rousey (c) vs. Cat Zingano

Middleweight: Ronaldo “Jacare” Souza vs. Yoel Romero

Bantamweight: Norifumi “Kid” Yamamoto vs. Roman Salazar

Welterweight: Josh Koscheck vs. Jake Ellenberger

Lightweight: Tony Ferguson vs. Yancy Medeiros

Welterweight: Richard Walsh vs. Alan Jouban

Middleweight: Mark Munoz vs. Roan Carneiro

Heavyweight: Derrick Lewis vs. Ruan Potts

Female Bantamweight: Raquel Pennington vs. Holly Holm

Lightweight: James Krause vs. Valmir Lazaro

Featherweight: Masio Fullen vs. Alexander Torres