Andrés Ponce "Andy" Ruiz Jr. is an American professional boxer of Mexican descent. He is a former unified heavyweight champion, having defeated Anthony Joshua to win the WBA (Super), IBF, WBO, and IBO titles in June 2019, only to lose them in a rematch with Joshua in December of the same year. In doing so, Ruiz became the first boxer of Mexican heritage to become a world heavyweight champion, and second Hispanic world heavyweight champion overall.