A sports club or sport club, sometimes athletics club or sports association is a club for the purpose of playing one or more sports. Sports clubs range from organisations whose members play together, unpaid, and may play other similar clubs on occasion, watched mostly by family and friends, to large commercial organisations with professional players which have teams which regularly compete against those of other clubs and attract sometimes very large crowds of paying spectators. Clubs may be dedicated to a single sport, or to several (multi-sport club).

The term athletics club is sometimes used for a general sports club, rather than one dedicated to athletics proper.

Stefanie Maria "Steffi" Graf (born 14 June 1969, in Mannheim, Baden-Württemberg, West Germany) is a former World No. 1 German tennis player.

In total, Graf won 22 Grand Slam singles titles, second among male and female players only to Margaret Court's 24. In 1988, she became the first and only tennis player (male or female) to achieve the Calendar Year Golden Slam by winning all four Grand Slam singles titles and the Olympic gold medal in the same calendar year.

Graf was ranked World No. 1 by the Women's Tennis Association (WTA) for a record 377 total weeks—the longest period for which any player, male or female, has held the number-one ranking since the WTA and the Association of Tennis Professionals began issuing rankings. She also holds the open era record for finishing as the year-end World No. 1 the most times, having done so on eight occasions. She won 107 singles titles, which ranks her third on the WTA's all-time list after Martina Navratilova (167 titles) and Chris Evert (154 titles).

Andre Kirk Agassi ( /ˈɑːndreɪ ˈæɡəsi/; born April 29, 1970) is a retired American professional tennis player and former world no. 1. Generally considered by critics and fellow players to be one of the greatest tennis players of all time, Agassi has been called the best service returner in the history of the game. Described by the BBC upon his retirement as "perhaps the biggest worldwide star in the sport's history", Agassi's performances, along with his unorthodox apparel and attitude, have seen him cited as one of the most charismatic players in the history of the game, and credited for helping revive the popularity of tennis during the 1990s.

In singles tennis, Agassi is an eight-time Grand Slam champion who competed in 15 Grand Slam finals, and an Olympic gold medalist. A multi-surface specialist, he is the first of two male players to have achieved a singles Career Golden Slam, and one of four to have achieved a singles Career Grand Slam in the Open Era (one of seven in history). He was the first male player to win all four Grand Slams on three different surfaces (hard, clay and grass), and is the last American male to win the French Open (1999) and the Australian Open (2003). Agassi also won 17 ATP Masters Series titles, the 1990 ATP Tour World Championships, and was part of a winning Davis Cup team in 1990 and 1992. He is the only male singles player in history to have won all four Grand Slam tournaments, the Olympic gold medal and the ATP Tour World Championships: a distinction dubbed as a "Career Super Slam" by Sports Illustrated.