Mikhail Kukushkin of Kazakhstan returns a ball during his Davis Cup quarter-final tennis match against Roger Federer of Switzerland in Geneva April 4, 2014. REUTERS/Denis Balibouse (SWITZERLAND - ... more 
Mikhail Kukushkin of Kazakhstan returns a ball during his Davis Cup quarter-final tennis match against Roger Federer of Switzerland in Geneva April 4, 2014. REUTERS/Denis Balibouse (SWITZERLAND - Tags: SPORT TENNIS) less 
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Reuters | Photo By DENIS BALIBOUSE / REUTERS
Fri, Apr 4, 2014 1:15 PM EDT