José Aldo is in the Ultimate Fighting Championship and has been for a decade.
José Aldo da Silva Oliveira Junior ( [ ʒoˈzɛ ˈaldu ] ; born September 9 , 1986 ) is a Brazilian mixed martial artist in the Ultimate Fighting Championship and the UFC Featherweight Champion , currently in his second reign . In the decade between losses in November 2005 and December 2015 , Aldo was undefeated in 18 fights , before being defeated by Conor McGregor at UFC 194 .