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) have more respect for history, ruled in 1982 that winning any four straight majors constituted a Grand Slam—and offered a $1 million bonus for it [...] But many tennis people, and most writers, and probably most fans, too, did not accept the new rules, and the I.T.F. has dropped the gimmick." Vecsey was only half right: the ITF dropped the "gimmick" of the cash bonus, but it had never changed any rules. However, the ambiguous way the ITF described the Grand Slam in their Constitution led to journalists continuing to make the same assumption as Vecsey over two decades later.