ATP Dubai Duty Free Tennis Championship - Day Three [Getty Images]

DUBAI, UNITED ARAB EMIRATES - FEBRUARY 26: Roger Federer of Switzerland in action against Radek Stepanek of Czech Republic during their second round match for the Dubai Duty Free Tennis ATP Championships in Dubai on February 26, 2014 in Dubai, United Arab Emirates. (Photo by Amin Mohammad Jamali/Getty Images)

Getty Images Sport Amin Mohammad Jamali