Equipment and endorsements Agassi used Prince Graphite rackets early in his career. He signed a $7 million endorsement contract with Belgian tennis racquet makers Donnay. He later switched to Head Ti Radical racket and Head's LiquidMetal Radical racket, having signed a multimillion-dollar endorsement deal with Head in 1993. He renewed his contract in 1999, and in November 2003 he signed a lifetime agreement with Head. He also endorses Penn tennis balls. On July 25, 2005, Agassi left Nike after 17 years and signed an endorsement deal with Adidas. A major reason for Agassi leaving Nike was because Nike refused to donate to Agassi's charities, and Adidas did. On May 13, 2013, Agassi rejoined Nike.
equipment and endorsements agassi used prince graphite rackets early in his career he signed a $7 million endorsement contract with belgian tennis racquet makers donnay he later switched to head ti radical racket and head's liquidmetal radical racket having signed a multimillion-dollar endorsement deal with head in 1993 he renewed his contract in 1999 and in november 2003 he signed a lifetime agreement with head he also endorses penn tennis balls on july 25 2005 agassi left nike after 17 years and signed an endorsement deal with adidas a major reason for agassi leaving nike was because nike refused to donate to agassi's charities and adidas did on may 13 2013 agassi rejoined nike