Antonio "Tony" Margarito Montiel (born March 18, 1978) is an American-born Mexican professional boxer. He has held multiple welterweight world championships, including the WBO title from 2002 to 2007, the IBF title in 2008, and the WBA (Super) title from 2008 to 2009. He has also challenged three times for a light middleweight world title between 2004 and 2011. Nicknamed El Tornado de Tijuana ("The Tijuana Tornado"), Margarito is known for his aggressive pressure fighting style and exceptionally durable chin. In 2009, just before his fight with Shane Mosley, Margarito was involved in an incident where he was caught with illegal hand wraps containing gypsum (calcium sulfate) which, when combined with moisture, forms plaster of Paris. His signature stoppage victory over Miguel Cotto in 2008 was subsequently called into question. Following consecutive losses to Manny Pacquiao (a fight in which Margarito sustained severe eye damage) and a rematch against Cotto, Margarito retired from boxing in 2012 but returned in 2016.