LONDON, ENGLAND - JULY 04:  Lleyton Hewitt of Australia celebrates playing with partner Thanasi Kokkinakis of Australia in the Gentlemens Doubles Second Round match against Robert Lindstedt of Sweden and Jurgen Melzer of Austria during day six of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 4, 2015 in London, England.  (Photo by Julian Finney/Getty Images)