An intriguing flyweight division fight has been added to UFC On Fox IV as Ian McCall has agreed to a fight with John Moraga. McCall came up short in the inaugural flyweight tournament, losing to Demetrious Johnson in the semi-finals. Moraga enters the UFC riding a four fight winning streak and has fought UFC veteran John Dodson at a Nemesis Fighting MMA event. UFC On Fox IV takes place on August 4th at the Staples Center in Los Angeles, California with Mauricio Rua and Brandon Vera headlining.