2016 Andy Murray tennis season to defend the Olympic singles title. In the 2016 season, Murray became the first male player to win singles titles at a Grand Slam, the Olympics, a Masters 1000 event, and the ATP Finals in the same calendar year (Serena Williams, in 2012, is the only other person to accomplish this feat). On 7 November, Murray became the first British man and twenty-sixth male player to attain the world No. 1 ranking in singles since records began in 1973, displacing long-time rival and friend, Novak Djokovic. At , Murray is the oldest first-time singles No. 1 in the last 40
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