Andy Murray first British man to do so since 1937. Their most recent match was played in the first round of the 2018 Eastbourne International, which Murray won in straight sets. Due to this match-up and since both players each have three Grand Slam titles, Wawrinka has been identified by some, including Djokovic, as a potential contender to turn the Big Four tennis quartet into a "Big Five", although Wawrinka himself has downplayed those suggestions, stating that he is still far behind them. Murray plays an all-court game with an emphasis on defensive baseline play, and professional tennis coach Paul Annacone stated
Grand Slam (tennis) is all about is like a baseball player believing that he 'hit for the cycle' after slugging a single, double and triple in the first game of a doubleheader and a home run in his first time at bat in the second game." Despite seeming clarity from the ITF, some journalists suggested that the sport's organizing body had turned its back on history and changed the "rules" of tennis by redefining a Grand Slam. Such confusion continued for years. For instance, when Steffi Graf completed the Grand Slam in 1988, George Vecsey wrote, "Even the International Tennis Federation, which should