{{Infobox boxing match | fight date = June 25, 2005 | Fight Name = Thunder & Lightning | location = Boardwalk Hall, Atlantic City, New Jersey, U.S. | image = | fighter1 = Arturo Gatti | nickname1 = Thunder | record1 = 39–6 (30 KO) | height1 = 5 ft 7+1/2 in | weight1 = 140 lb | style1 = Orthodox | hometown1 = Montreal, Quebec, Canada | recognition1 = WBC super lightweight champion2-division world champion | fighter2 = Floyd Mayweather Jr. | nickname2 = Pretty Boy | record2 = 33–0 (22 KO) | hometown2 = Grand Rapids, Michigan, U.S. | height2 = 5 ft 8 in | weight2 = 139 lb | style2 = Orthodox | recognition2 = [[The Ring (magazine)|The Ring]] No. 2 ranked pound-for-pound fighter2-division world champion | titles = WBC super lightweight title | result = Mayweather Jr. wins via 6th-round RTD }} Arturo Gatti vs. Floyd Mayweather Jr., billed as Thunder & Lightning'', was a professional boxing match contested on June 25, 2005 for the WBC super lightweight championship. Background The Gatti–Mayweather bout had been in the making for over a year. After a tough trilogy with Mickey Ward, Gatti earned a shot at the vacant WBC super lightweight (AKA light welterweight) championship, winning the title on January 21, 2004 with a unanimous decision victory over Gianluca Branco. Four months later, Mayweather would vacate his WBC and The Ring lightweight title and move up to the light welterweight division. Initially, Mayweather was set to face the undefeated former IBF lightweight champion Paul Spadafora to determine who would be the mandatory challenger to Gatti's title, but the fight was nixed due to Spadafora's legal troubles. Instead, Mayweather was matched up against former WBO light welterweight champion DeMarcus Corley in a WBC "eliminator" bout on May 22, 2004. In his light welterweight debut, Mayweather had Corley down on the canvas no less than seven times (though only two were declared official knockdowns) and cruised to an easy, lopsided unanimous decision that made him the number one contender to Gatti's title. After a successful defense against Leonard Dorin, Gatti announced his intentions to face Mayweather. However, several disagreements hindered the negotiations and the two sides would not reach an agreement until March 2005 for a June 25 fight in New Jersey. Prior to the fight, Mayweather repeatedly bashed Gatti in the press, calling him, among other things, a