Despite Dana White’s efforts to dispel the rumor that Facebook CEO, Mark Zuckerberg, rented out the UFC Apex for UFC Vegas 61, the billionaire mogul was nonetheless spotted cageside with his wife by his side. Earlier this week, it was reported that UFC Vegas 61 would be closed to fans and media members trying to catch some early-October fights. The promotion was completely closed off about the change of plans and offered little-to-no explanation as to why the UFC Apex would be locked down. Details were scarce to say the least. UFC Vegas 61’s main event attraction, Mackenzie Dern, revealed…