UFC Fight Night 51: Bigfoot vs. Arlovski was a mixed martial arts event held on September 13, 2014 at Ginásio Nilson Nelson in Brasília, Brazil. The event was headlined by a heavyweight rematch between Antônio Silva and Andrei Arlovski. Their first fight at Strikeforce: Heavy Artillery ended in a unanimous decision victory for Silva.
Length 162 minutes
Andrei Arlovski | Gleison Tibau | Paulo Thiago | Antonio Silva | Rani Yahya | Efrain Escudero | Godofredo Pepey | Iuri Alcântara | Russell Doane | Jéssica Andrade | Francisco Trinaldo | Santiago Ponzinibbio | Leandro Silva | Leonardo Santos | Johnny Bedford | Sean Spencer | Piotr Hallmann | Igor Araújo | Dashon Johnson | Wendell Oliveira | Larissa Pacheco | George Sullivan