Mafaufau Tavita Lio Mafaufau Sanerivi Talimatasi (born 21 November 1972), known as David Tua, is a Samoan New Zealander 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 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. In a 2003 article by The Ring magazine, Tua was ranked 48th on a list of 100 greatest punchers of all time.
Nicknamed the "Tuamanator", his fast-paced bob and weave pressure fighting style has often drawn comparisons to Mike Tyson. Tua fought many of the best fighters of his era and challenged once for the unified world heavyweight title against Lennox Lewis in 2000. In his five losses, Tua was never subject to a stoppage, and possessed one of the most durable chins of his time.