World BJJ champion Mackenzie Dern has an her opponent for her Legacy MMA debut.
Rosas (4-2 ammy) will step up to face Dern at Legacy FC 58 on July 22 in Lake Charles, Louisiana.
The match will take place at 115 pounds.
Rosas most recent win was in April against Randee Morales. Fighting out of Team XTreme in Plainview, Texas, she is undefeated as an amateur kickboxer with a 6-0 record.
Dern has been spending her time at the MMA Lab prepping her striking for the fight under former UFC champion Benson Henderson and new striking coach Eddie Cha.
The bout will air live on AXS TV July 22.