Twelve-time UFC veteran Matt Riddle (7-3) makes his Legacy Fighting Championship debut on July 19 when he faces Artenas Young (9-5) at Legacy FC 21.

The event takes place at Houston’s Arena Theater, and the night’s main cards airs on AXS TV.

The booking was revealed on Friday’s new edition of AXS TV’s “Inside MMA.” Additionally, MMAjunkie.com (www.mmajunkie.com) has learned the evening will also feature a pair of title fights, as William “Bubba” Bush (5-2) faces Larry Crowe (6-2) for the promotion’s vacant middleweight title and Angel Huerta (6-1) competes for the vacant Legacy FC featherweight belt against the winner of an April 12 bout between Matt Hobar (6-1) and Nelson Salas (4-0).

Riddle fought most recently in February, where he earned a split-decision win over Che Mills at UFC on FUEL TV 7. It was a controversial nod in that many, including UFC President Dana White, believed he had cruised to a unanimous decision victory.

Afterward, Riddle (who is a licensed medical marijuana user in Nevada) tested positive for marijuana metabolites. It was his second such result, and the UFC elected to release him from his contract. The result of the bout was also changed to a no contest.

Meanwhile, Young is a five-time Legacy FC veteran who fought most recently this past October and delivered a stunning 4-second knockout of Brandon Mitchell. A onetime Strikeforce fighter, Young also holds a notable win over prospect Elvis Mutapcic.

Huerta has fought six times under the Legacy FC banner, earning a 5-1 mark in those bouts. Five of his six career wins have come by knockout. Meanwhile, Hobar and Salas meet at Legacy FC 19, which takes place at Allen Event Center in Allen, Texas.

For more on Legacy FC 21, stay tuned to the MMA Rumors section of the site.

(Pictured: Matt Riddle)