Roger Federer (born August 8, 1981) is a Swiss tennis professional, currently ranked World No. 1. Many experts and many of his own tennis peers believe Federer may be the best player in the history of the game. Federer has won eleven Grand Slam men's singles titles in 33 appearances (all eleven coming in a record 17 consecutive appearances), three Tennis Masters Cup titles, and 13 ATP Masters Series titles.

Rafael "Rafa" Nadal Parera (born June 3, 1986, in Manacor, Mallorca) is a top Spanish professional tennis player. As of July 2007, he is ranked No. 2 in the world. He is a three-time Grand Slam champion, having won three consecutive French Open singles titles (2005-07), and has twice been a runner-up at Wimbledon (2006-07). Nadal is undefeated in his career at the French, having won all 21 matches he has played en route to his three championships.

Peter “Pete” Sampras, is a former World No. 1 tennis player from the United States. During his 15 year career he won a record 14 Grand Slam men's singles titles in 52 appearances. For six consecutive years Sampras finished as No. 1 on the ATP rankings, a record for the open era and tying him for third all-time. Sampras won the singles title at Wimbledon seven times, a record shared with William Renshaw. He also won five singles titles at the US Open, …

Andre Kirk Agassi (born April 29 1970, in Las Vegas, Nevada) is a former World No. 1 professional tennis player from the United States who won eight Grand Slam singles tournaments and an Olympic gold medal in singles. He is one of only five male players to have won all four Grand Slam singles events during his career. He is the only player in the open era to have won every Grand Slam singles title, to have won the Tennis Masters Cup, …

Stefanie Maria Graf (born June 14, 1969, in Mannheim, West Germany) is a former World No. 1 ranked female tennis player from Germany. Graf won 22 Grand Slam singles titles, second among male and female players only to Margaret Smith Court's 24. In December 1999, Graf was named the greatest female tennis player of the 20th century by a panel of experts assembled by the Associated Press.

Martina Navratilova (born October 18, 1956, in Prague, Czechoslovakia) is a former World No. 1 woman tennis player. Billie Jean King said about Navratilova in 2006, "She's the greatest singles, doubles and mixed doubles player who's ever lived." Tennis writer Steve Flink, in his book "The Greatest Tennis Matches of the Twentieth Century", named her as the second best female player of the 20th century, directly behind Steffi Graf.

Roy Stanley Emerson (born November 3 1936) is a former Australian tennis player who won 12 Grand Slam singles titles and 16 Grand Slam men's doubles titles. He is the only male player to have won singles and doubles titles at all four Grand Slam tournaments. His 28 Grand Slam titles are an all-time record for a male player. Most of his titles were won in the final years of the period where the Grand Slam events were open only to amateur players, …

Sarah Virginia Wade (born July 10 1945, in Bournemouth, Dorset, England) is a former professional tennis player from the United Kingdom. She won three Grand Slam singles titles and four Grand Slam doubles titles. She is particularly remembered for winning the women's singles title at Wimbledon in the championship's Centenary year on July 1, 1977, currently the last Briton to do so. It was also the Queen's Silver Jubilee year.

John Albert Kramer (born August 1, 1921, in Las Vegas, Nevada) was a champion U.S. tennis player of the 1940s. A World No. 1 player for a number of years, he is a possible candidate for the title of the greatest tennis player of all time. He was also, for many years, the leading promoter of the professional tennis tours and a relentless advocate for the establishment of Open tennis between amateur and professional players.

Ricardo Alonso González or Richard Gonzalez, who was generally known as Pancho Gonzales or, less often, as Pancho Gonzalez, was the World No. 1 tennis player for an unequalled 8 years in the 1950s and early 1960s. During that period, he played as a professional. Completely self-taught, he was also a successful amateur player in the late-1940s, twice winning the United States Championships.

Pamela Howard Shriver Lazenby (born July 4 1962, in Baltimore, Maryland), is a former professional tennis player and current sports broadcaster from the United States. During the 1980s and 1990s, she won 133 top-level titles, including 22 women's doubles titles and 1 mixed doubles title at Grand Slam tournaments. She also won a women's doubles gold medal at the 1988 Olympic Games in Seoul, partnering with Zina Garrison.

The open era in tennis began in 1968, when the Grand Slam tournaments, such as Wimbledon, abandoned the longstanding rules of amateurism and allowed professionals to compete.

Margaret Smith Court AO MBE (born 16 July 1942) is a retired former World No. 1 tennis player from Australia, who in 1970, became the first woman in the open era to win all four Grand Slam singles titles in the same calendar year. Court won a record 24 Grand Slam singles titles, more than any other player – male or female – in tennis. She won a record 62 Grand Slam titles – 24 singles, 19 women's doubles, and 19 mixed doubles, again, …

Alexandra Stevenson (born December 15, 1980 in La Jolla, California) was a professional tennis player from the United States. Stevenson shocked the tennis world in 1999 when, in her first appearance at Wimbledon, she became the first woman qualifier in the Open Era to reach the semi-finals. In the fourth round, she saved one match point against Lisa Raymond in a 2-6, 7-6, 6-1 win. She then beat Jelena Dokic in three sets in the quarter-finals, …

Richard Dudley "Dick" Sears (born on October 26, 1861 in Boston - died on April 8, 1943) was an American male tennis player. Undefeated in the U.S. Championships, he won the first of his seven titles there in 1881 while still a student at Harvard. Starting in the 1881 first round, he went on an 18-match unbeaten streak that would take him through the 1887 championships, after which he retired from the game.

Henry ("Harry") Christian Hopman, CBE (12 August 1906 - 27 December 1985) was a world-acclaimed tennis player and coach, born in Glebe, Sydney, New South Wales and soon moving to Parramatta, a city adjoining Sydney, Australia and now effectively a suburb of the metropolis. He was a student at Rosehill Public primary (elementary) school where his father was headmaster, and later Parramatta High School where he played tennis and cricket.

Jaime Fillol (b. June 3, 1946) is a former tennis player from Chile. He played amateur and professional tennis in the 1960s and 1970s. Fillol was ranked as high as world number 14 in singles on the ATP Rankings (achieving that ranking on March 2 1974) and number 82 in doubles (January 2 1984). In the Open era (after 1968), Fillol won seven singles titles and 15 doubles titles. In addition Jaime was a founding member and one of the first ATP Presidents.

Mirjana Lučić is a professional tennis player from Croatia. She enjoyed a brief but promising career on the WTA Tour in the late-1990s, during which she set a few "youngest-ever" records and won one Grand Slam women's doubles title at the Australian Open in 1998 when she was only 15 years old, partnering Martina Hingis. Following a series of personal problems from 2000 onwards, she faded from the scene. In March 2007, following her first round victory at Indian Wells, …

Guillermo Pérez-Roldán is a former professional tennis player from Argentina. Pérez-Roldán was known particularly as a strong clay court player. He turned professional in 1986. Between 1987 and 1993, he won nine top-level singles titles. His best Grand Slam performance came at the 1988 French Open, where he reached the quarter-finals before being knocked-out by Andre Agassi. He burst onto the scene as a teenager in 1988 by reaching the final of the Italian Open, …