Sergio AgÃ 1\/4 ero ( born 2 June 1988 ) is an Argentine football player . He plays for AtlÃ tico Madrid and Argentina national team . Sergio Leonel `` Kun '' AgÃ 1\/4 ero del Castillo ( ; born 2 June 1988 ) is an Argentine footballer of Lebanese descent who currently plays as a striker for AtlÃ tico Madrid and the Argentine national team .