Ivan Lendl (born March 7, 1960) is a former world no. 1 professional tennis player. Originally from Czechoslovakia, he became a United States citizen in 1992. He was one of the game's most dominant players in the 1980s and remained a top competitor into the early 1990s. He is considered to be one of the greatest tennis players of all time. Lendl captured eight Grand Slam singles titles. He competed in 19 Grand Slam singles finals, record surpassed by Roger Federer in 2009. He reached at least one Grand Slam final for 11 consecutive years, a record shared with Pete Sampras, with the male primacy of 8 consecutive finals in a slam tournament (a record shared with Bill Tilden at US Open). Before the formation of the ATP Lendl reached a record 12 year-end championships (equaled by John McEnroe). He won two WCT Finals titles and five Masters Grand Prix titles, with the record of 9 consecutive finals. He also won a record 22 Championship Series titles (1980–89) the precursors to the current ATP Masters 1000. Lendl first attained the world no. 1 ranking on February 28, 1983 and bolstered his claim to the top spot when he defeated John McEnroe in the 1984 French Open final. For much of the next five years, Lendl was the top ranked player until August 1990 (with a break from September 1988 to January 1989 when Mats Wilander was at the top). He finished four years ranked as the world's top player (1985–1987 and 1989) and was ranked no. 1 for a total of 270 weeks and set a new record previously held by Jimmy Connors, since broken by Pete Sampras and Roger Federer. In 2011 he became Andy Murray's coach.

John Patrick McEnroe, Jr. (born February 16, 1959) is a former world no. 1 professional tennis player from the United States. During his career, he won seven Grand Slam singles titles (three at Wimbledon and four at the US Open), nine Grand Slam men's doubles titles, and one Grand Slam mixed doubles title. McEnroe also won a record eight season ending championships, comprising five WCT Finals titles and three Masters Grand Prix titles from twelve final appearances at these two events, a record he shares with Ivan Lendl. He posted the best single season win-loss record in the Open Era in 1984 at 96.47% (82/3). In addition he won 19 Championship Series top tier events of the Grand Prix Tour that were the precursors to the current Masters 1000.

He is best remembered for his shot-making artistry and superb volleying; for his famous rivalries with Björn Borg, Jimmy Connors and Ivan Lendl; for his confrontational on-court behavior which frequently landed him in trouble with umpires and tennis authorities; and for the catchphrase "You cannot be serious!" directed toward an umpire during a match at Wimbledon in 1981. He was inducted into the International Tennis Hall of Fame in 1999, and is regarded as one of the greatest tennis players of all time.

Björn Rune Borg (Swedish pronunciation: [bjœːɳ bɔrj] ( listen); born 6 June 1956) is a former world no. 1 tennis player from Sweden. Between 1974 and 1981 he won 11 Grand Slam singles titles. He won five consecutive Wimbledon singles titles (a record shared with Roger Federer) and six French Open singles titles (a record shared with Rafael Nadal). He is considered by many to be one of the greatest tennis players of all time.

During his relatively brief pro career, Borg won 41% of the Grand Slam singles tournaments he entered (11 of 27) and 89.81% (141–16) of the Grand Slam singles matches he played. His winning rate across all surfaces (carpet, clay, hard, and grass) was 82.72% (608-127), and his winning percentage at Wimbledon was 92.73% (51–4); both are records for an entire career. He is one of four players in the open era to win both Wimbledon and the French Open in the same year and the only player to do so for three consecutive years. He is the first player to win two Grand Slams without dropping a set (a record shared with Rafael Nadal). He also won three year-end championship titles, including two Masters Grand Prix titles and one WCT Final title. In addition, he won 15 Championship Series titles (1974–1980) the precursors to the current Masters 1000.

Michael Te-Pei Chang (born February 22, 1972) is a former American professional tennis player. He is best remembered for becoming the youngest-ever male player to win a Grand Slam singles title when he won the French Open in 1989 at the age of 17.

Known for his on-court speed and fighting spirit, Chang is considered by many observers to have been one of the best tennis counterpunchers of all time. He also introduced the jumping two-handed backhand. He remained in the top 10 of the ATP world rankings for several years in the 1990s, peaking at world no. 2.

Chang was inducted into the International Tennis Hall of Fame in 2008.

Chang first came to the tennis world's attention as an outstanding junior player who set numerous "youngest-ever" records. He won his first national title, the USTA Junior Hard Court singles, at the age of 12. Aged 13, he won the Fiesta Bowl 16s. Two years later, aged 15, Chang won the USTA Boys 18s Hardcourts and the Boys 18s Nationals, and became the youngest player to win a main draw match at the US Open when he defeated Paul McNamee in four sets in the first round. A month later he reached the semifinals at Scottsdale, Arizona to become the youngest player to reach the semifinal stage of a top-level professional tournament. He won his first top-level singles title in 1988 at San Francisco, aged 16 years and 7 months.

Mats Wilander (born 22 August 1964, in Växjö, Sweden) is a former world no. 1 tennis player from Sweden. From 1982 through 1988, he won seven Grand Slam singles titles (three at the French Open, three at the Australian Open, and one at the US Open), and one Grand Slam men's doubles title (at Wimbledon). He won three of the four Grand Slam singles events in 1988 and finished that year ranked World No. 1. Although he never won the singles title at Wimbledon, Wilander twice won the Australian Open when that tournament was still played on grass courts. This makes Wilander one of only five men (along with Jimmy Connors, Andre Agassi, Rafael Nadal, and Roger Federer) to have won Grand Slam singles titles on grass courts, hard courts, and clay courts. He and Rafael Nadal are the only men in tennis history to have won at least two Grand Slam singles titles on each of the three surfaces. Wilander won his fourth career Grand Slam singles title at the age of 20, the youngest man in history to have achieved that feat. In addition he also won eight Championship Series titles (1983–88) the precursors to the current Masters 1000.