They are set to face each other in EXF 5 - Ensenada Xtreme Fighting 5.
The fight is scheduled to take place on April 15, 2016
The fight is set to start at 24:00 GMT.
They are competing in the UFC Lightweight.
Manuel Vaca represents Mexico, and Genaro Valdéz represents Mexico.
The fight is a highly anticipated championship bout in the UFC Lightweight.