Jose Aldo and Conor McGregor will participate in arguably the most anticipated fight in Ultimate Fighting Championship history when they take to the Octagon on Sunday.

UFC 194 sees Brazilian Aldo take on Irishman Conor McGregor at the MGM Grand Garden Arena in Las Vegas, Nevada in a UFC Featherweight Championship unification bout.

Current champion Aldo pulled out two weeks before their last scheduled fight with interim champion McGregor in July, citing a rib injury, and the Dubliner has predicted that he will not show up again at UFC 194.