While at a news conference ahead of an exhibition match in Argentina, Roger Federer is asked whether he thinks he can compare himself to local football heroes Lionel Messi and Diego Maradona. Federer laughs off the question but says that he and Messi still have work to do to take their place in history alongside Maradona. During a recent tennis match in Brazil, Federer showed of his football skills playing Tommy Haas with an oversize tennis ball in a game of 'football tennis'