What a Shot! 

      LONDON, ENGLAND - JUNE 27:  Novak Djokovic of Serbia celebrates victory following the Men's Singles first round match against James Ward of Great Britain on day one of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 27th, 2016 in London, England.  (Photo by Shaun Botterill/Getty Images)

      Djokovic, Federer win Wimbledon openers

      On the opening day at Wimbledon -- the granddaddy of tennis tournaments -- three grand slam winners at very different stages of their career featured at the sport's most famous stadium.