UFC 2015 34 2015-11-07 2015-11-07 https://r2.thesportsdb.com/images/media/event/thumb/usryyx1454873531.jpg https://r2.thesportsdb.com/images/media/event/poster/wttvww1454192638.jpg The event was the fourth held in São Paulo following UFC Ultimate Brazil (1998), UFC on FX: Belfort vs. Bisping (2013) and The Ultimate Fighter Brazil 3 Finale: Miocic vs. Maldonado (2014) and the twenty-fourth overall event to be held in Brazil. The event was headlined by a middleweight trilogy bout between longtime multi-divisional contenders and champions Vitor Belfort and Dan Henderson. Henderson defeated Belfort in their first encounter in 2006 at Pride 32 via unanimous decision. Belfort defeated Henderson in their second encounter in 2013 at UFC Fight Night: Belfort vs. Henderson via first round knockout. Tom Lawlor was expected to face Fabio Maldonado at this event. However, Lawlor was forced to pull out due to injury and was replaced by The Ultimate Fighter 19 light heavyweight winner Corey Anderson. On December 4, it was announced that Gleison Tibau was "provisionally suspended" by the United States Anti-Doping Agency (USADA) due to a potential failed out-of-competition drug test. On December 23, a second potential failed drug test, this time in-competition, was also announced. USADA will handle the results management and appropriate adjudication of the case. 505167