Novak Djokovic (Serbian: Новак Ђоковић or Novak Đoković; pronounced [nɔ̂ʋaːk dʑɔ̂ːkɔʋitɕ] ( listen); born 22 May 1987) is a Serbian professional tennis player who has been ranked World No. 1 by the Association of Tennis Professionals (ATP) since 4 July 2011. He has won five Grand Slam singles titles: the 2008, 2011 and 2012 Australian Open, the 2011 Wimbledon Championships, and the 2011 US Open. By winning three Majors in 2011, Djokovic became the sixth male player in the open era to win three Majors in a calendar year.

He is the first male player representing Serbia to win a Major singles title and the youngest player in the open era to have reached the semifinals of all four Grand Slam events, separately and consecutively. Amongst other titles, he won the Tennis Masters Cup in 2008 and was on the team which won the 2010 Davis Cup. He also won the bronze medal in singles at the Beijing Olympics in 2008. He has won 11 Masters 1000 series titles placing him joint fourth on the all time list. Djokovic has quickly moved up in the rankings of history. Tennis Channel ranked him number 40 , and former player Pat Cash said he is one of the greatest ever.

Jürgen Melzer (born 22 May 1981 in Vienna) is an Austrian tennis player. He reached a career-high ranking of World No. 8 on 18 April 2011, and a doubles ranking of World No. 6 on 13 September 2010. He is the only current player on the ATP Tour to be ranked in the top 10 in both singles and doubles. He is a left-handed tennis player, but is right-handed in everyday life. He has a younger brother, Gerald Melzer, with whom he has played doubles in several tournaments.

In 1999, he won the boys' singles event at Wimbledon. For many years, he was known as one of the best players on the tour not to have progressed past the third round of a Grand Slam event. He ended this streak when he reached the semifinals of the French Open in 2010. He has also had success in doubles, winning the mens doubles event at Wimbledon in 2010 and the US Open in 2011 with Philipp Petzschner, as well as the mixed doubles event at Wimbledon in 2011 with Iveta Benešová.

He is endorsed by Adidas and Dunlop Sport. Melzer is currently coached by Joakim Nystrom.

Grigor Dimitrov (Bulgarian: Григор Димитров; born May 16, 1991, in Haskovo) is a tennis player from Bulgaria. He achieved a career high ranking of World No. 52 on August 22, 2011. Dimitrov also enjoyed a very successful junior career, in which he held the World No. 1 ranking and won the boy's singles titles at the 2008 Wimbledon Championships and the 2008 US Open.

Grigor was born in Haskovo, Bulgaria as the only child of father Dimitar, a tennis coach and mother Maria, a sports teacher and former volleyball player. He first held a tennis racket, given to him by his mother at the age of three and when he was five he began to play daily. During his teenage years he lived in Paris, France while training at Patrick Mouratoglou's Tennis Academy. He speaks fluent Bulgarian and English and says his main interests are all sports, cars, computers and watches.

His first major junior coup was when, at aged 14 he claimed the U14 European title. In 2006 he won the Orange Bowl U16 boys singles and was later named the Eddie Herr International 2007 Rising Star.

Roger Federer (German pronunciation: [ˈfeːdəʁɐ]) (born 8 August 1981) is a Swiss professional tennis player who held the ATP No. 1 position for a record 237 consecutive weeks from 2 February 2004 to 18 August 2008. Federer has occupied the #1 ranking for 285 overall weeks, one week short of the record 286 weeks held by Pete Sampras. As of 28 May 2012, he is ranked World No. 3. Federer has won a men's record 16 Grand Slam singles titles. He is one of seven male players to capture the career Grand Slam and one of three (with Andre Agassi and Rafael Nadal) to do so on three different surfaces (clay, grass, and hard courts). He is the only male player in tennis history to have reached the title match of each Grand Slam tournament at least five times and also the final at each of the nine ATP Masters 1000 Tournaments. Many sports analysts, tennis critics, and former and current players consider Federer to be the greatest tennis player of all time.

Federer has appeared in an unprecedented 23 career Grand Slam tournament finals, including a men's record ten in a row, and appeared in 18 of 19 finals from the 2005 Wimbledon Championships through the 2010 Australian Open, the lone exception being the 2008 Australian Open. He holds the record of reaching the semifinals or better of 23 consecutive Grand Slam tournaments over five and a half years, from the 2004 Wimbledon Championships through the 2010 Australian Open. At the 2012 Australian Open, he reached a record 31st consecutive Grand Slam quarterfinal. During the course of his run at the 2012 French Open in Roland Garros, Federer eclipsed Jimmy Connors long standing record of 233 match wins in Grand Slam tournaments when he defeated Adrian Ungur in a second round match.

Richard Gasquet (French pronunciation: [ʁiʃaʁ ɡasˈkɛ]) (born 18 June 1986) is a French professional tennis player. He won the mixed doubles Grand Slam title at the 2004 French Open, partnering Tatiana Golovin. His highest ranking in singles is #7. His best achievements in tennis are reaching the semi-finals of Wimbledon in 2007 and later that year qualifying for the Tennis Masters Cup. Gasquet is best known for his long winding groundstrokes and his one-handed backhand.

Richard Gasquet was born in Béziers in the Languedoc-Roussillon region. He is the only child in the family. He began playing tennis at the age of 4 under the guidance of his father, Francis, who ran a tennis club, the TC Sérignan, along with his mother Maryse. He appeared on the cover of French Tennis Magazine aged only 9, and was touted as an extremely promising prospect even at such an early age. He was coached by his father during his junior career, and by Tarik Benhabiles for a short period. Since turning professional he has been coached by Eric Deblicker and Guillame Peyre. In February 2010, he hired coach Gabriel Markus, who has worked with Marat Safin and David Nalbandian in the past.