Faumuina To'aletai Mafaufau David Tua, best known as David Tua, is a Samoan-New Zealand former professional boxer who competed from 1992 to 2013. A highly ranked heavyweight contender for most of his career, Tua was known for his formidable punching power, especially in his devastating left hook. He scored sixteen wins by knockout in the first round, which included knockouts of world heavyweight champions John Ruiz and Michael Moorer within thirty seconds of the first round, as well as late stoppages of world champions Oleg Maskaev and Hasim Rahman. He was ranked by BoxRec in the world's top 10 heavyweights from 1996 to 2003, reaching his highest ranking of No.3 in 1998. Tua ended his career with a knockout-to-win ratio of 82.6%. In a 2003 article by The Ring magazine, Tua was ranked 48th on a list of 100 greatest punchers of all time.

John Ruiz is an American former professional boxer who competed from 1992 to 2010, and held the WBA heavyweight title twice between 2001 and 2005. Ruiz is of Puerto Rican descent, and is the first Latino boxer to win a world heavyweight title.