Two new lightweight fights have been added to the December UFC 194 card, as John Makdessi faces Yancy Medeiros and Kevin Lee battles Leonardo Santos.

Set for December 12 from Las Vegas, the event features Conor McGregor and Jose Aldo fighting to unify the UFC featherweight titles in the headline bout.

Makdessi (13-4) lost to Donald Cerrone earlier this year when he suffered a broken jaw, dropping him to 4-2 over his last six. Medeiros (11-3) was topped by Dustin Poirier in his most recent bout.

Lee (11-1) is on a four-fight win steak since a loss to Al Iaquinta, while Santos (14-3-1) won The Ultimate Fighter: Brazil 2 as a welterweight and submitted Tony Martin recently.

Below is the current lineup:

UFC Featherweight Championship
Jose Aldo (c) vs. Conor McGregor (ic)

UFC Middleweight Championship
Chris Weidman (c) vs. Luke Rockhold

Middleweight: Ronaldo “Jacare” Souza vs. Yoel Romero

Welterweight: Colby Covington vs. Warlley Alves

Welterweight: Court McGee vs. Marcio Alexandre, Jr.

Lightweight: John Makdessi vs. Yancy Medeiros

Lightweight: Leonardo Santos vs. Kevin Lee