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) singles player to win four consecutive major titles, no matter the time of completion. Although groups variously identified as the Men's International Professional Tennis Council, "abetted primarily by some British tennis writers", and "European tennis journalists" had advocated for the ITF to change the definition of "Grand Slam", ITF General Secretary David Gray made it clear that this was not going to happen. In a 1983 letter to tennis journalist Paul Fein, Gray clarified: The ITF's plan was to offer the cash bonus for three years, apparently to encourage players to compete in all four major tournaments as much as