Djokovic ett steg närmre en ”golden slam”

The Grand Slam tournaments, also referred to as majors, are the world's four most important annual professional tennis events. The tournaments offer the most ranking points, prize money, public and media attention, the greatest strength and size of field, and longest matches for men (best of 5 sets). Grand Slam tournaments are operated by the International Tennis Federation (ITF). The Association of Tennis Professionals (ATP) and the Women's Tennis Association (WTA) also award ranking points based on a player's performance at a major.The four Grand Slam tournaments are the Australian Open in January, the French Open from late May to early June, Wimbledon in late June to early July, and the US Open in August–September, each being played over a two-week period. The Australian and the United States tournaments are played on hard courts, the French on clay, and Wimbledon on grass. Wimbledon is the oldest tournament, founded in 1877, followed by the US in 1881, the French in 1891, and the Australian in 1905. The French Championships was not considered a major prior to 1924–25, when all four became designated as Grand Slam tournaments. Skipping majors, particularly the Australian Open because of the travelling distance involved, the inconvenient dates close to Christmas and New Year, and the comparatively low prize money, was not uncommon for some players prior to 1982.Winning a Grand Slam in tennis is the achievement of winning all four major championships in the same calendar year, in one of the five events: men's and women's singles; men's and women's doubles, and mixed doubles. In doubles, one team may accomplish a Grand Slam playing together or one player may achieve it with different partners. Winning the four majors in consecutive tournaments but not within the same calendar year is referred to as a non-calendar year Grand Slam, while winning all four majors at any point during the course of a career is known as a career Grand Slam. Winning the gold medal at the Summer Olympic Games in addition to the four majors in one calendar year is known as a "golden Grand Slam" or "Golden Slam". Winning the year-end championship (known as ATP Finals for men's singles and doubles disciplines, and WTA Finals for both women's disciplines) in the same period is known as a "Super Slam". Together, all four majors in all three disciplines (singles, doubles, and mixed doubles) have been called a "complete Boxed Set" of Grand Slam titles. To date, no player, male or female, has ever won all twelve events in one calendar year, though a career "Boxed Set" has been achieved by three women.