Faumuina To'aletai Mafaufau David Tua (born 21 November 1972), best known as David Tua, is a Samoan-born former New Zealand 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. BoxRec currently ranks him as the 16th greatest fighter to have only faced heavyweights during his professional career. He was ranked by BoxRec as the world's top 10 heavyweight 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.