A light heavyweight division affair has been added to the World Series Of Fighting 26 as Tyrone Spong faces Jake Heun. Spong is currently undefeated as a professional MMA fighter and he is better known for his run in Glory kickboxing. Heun has won two of three in the World Series Of Fighting, with his lone promotional loss coming to two division champion David Branch. World Series Of Fighting 26 takes place on December 18th from The Chelsea At The Cosmopolitan in Las Vegas, Nevada with no headliner announced as of yet.