Antonio "Tony" Margarito Montiel (born March 18, 1978) is a Mexican-American former professional boxer who competed between 1994 and 2017. He 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 also challenged three times for a light middleweight world title between 2004 and 2011. Nicknamed "El Tornado de Tijuana" ("The Tijuana Tornado"), Margarito was known for his aggressive pressure fighting style and exceptionally durable chin.