An injury to Brian Stann has forced the UFC’s hand in regards to the UFC on FOX 4 event.

Hector Lombard has also been removed, with Mauricio “Shogun” Rua and Brandon Vera taking the headline bout on August 4 from Los Angeles.

Rua, a former UFC light heavyweight champion, lost his original opponent for UFC 149 in Thiago Silva when Silva was injured and forced to pull out.

Vera, meanwhile, was removed from a planned fight with James Te Huna at UFC on FUEL: Munoz vs. Weidman.

The UFC did not confirm what will happen in regards to Lombard.

The UFC also set Josh Grispi vs. Rani Yahya for the event. Yahya replaces Pablo Garza in the fight.

Photo credit: Esther Lin/MMA Fighting