Juan Mónaco (born March 29, 1984 in Tandil), nicknamed "Pico", is a male tennis player from Argentina. He reached a career-high ranking of world no. 14 on February 4, 2008.

Monaco started playing tennis at the age of six. His father, Héctor, is a businessman, while his mother, Cristina, is an architect. He has two siblings. He enjoys spending time at home in Tandil with family and friends. His favorite sports to follow are football and basketball. His favorite teams are Estudiantes de La Plata and the San Antonio Spurs. His favorite surface is clay. He counts Andre Agassi and countryman Mariano Zabaleta as his heroes. He also enjoys going to the cinema. His favorite movies are Gladiator and 300. He is also a fan of The Lord of the Rings books.

Monaco used to be mentored by Luis Lobo of Argentina. Since the latter part of the 2010 season, Monaco has been coached by Mariano Zabaleta. He added Gastón Etlis to his coaching team in February 2011.

In 2002, Monaco made his pro circuit debut. On February 12 he won his first Tournament in Jamaica F20, Montego Bay by defeating Francisco Rodriguez of Paraguay. He ended the year ranked no. 470 in the singles.

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.

Rafael "Rafa" Nadal Parera (Catalan: [rəˈfɛɫ nəˈðaɫ pəˈɾeɾə]; Spanish: [rafaˈel naˈðal paˈɾeɾa]) (born 3 June 1986) is a Spanish professional tennis player and a former World No. 1. As of 28 May 2012 (2012 -05-28)^[update], he is ranked No. 2 by the Association of Tennis Professionals (ATP). He is widely regarded as one of the greatest players of all time; his success on clay has earned him the nickname "The King of Clay", and has prompted many experts to regard him as the greatest clay court player of all time.

Nadal has won ten Grand Slam singles titles, including a record six French Open titles (tied with Bjorn Borg), the 2008 Olympic gold medal in singles, a record 21 ATP World Tour Masters 1000 tournaments, and also was part of the Spain Davis Cup team that won the finals in 2004, 2008, 2009 and 2011. He completed the Career Grand Slam by winning the 2010 US Open, being the seventh player in history, and the youngest in the open era, to achieve it. He is the second male player to complete the Career Golden Slam (winner of the four grand slams and the Olympic Gold medal) after only Andre Agassi.

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.

Fabio 'The Fog' Fognini (born 24 May 1987 in Sanremo, Italy) is a professional tennis player and the current Italian No. 2. His career-high singles ranking is World No. 32, which he reached on June 20, 2011 after reaching the quarter-finals of the 2011 French Open. His favourite surface is the red clay of Paris, where he also reached the quarter-finals as a junior in 2004.

Fognini was born to Silvana and Fulvio, a businessman, and has a younger sister called Fulvia. He began playing tennis when he was four years old and is also a fan of football and motorbike racing. Fognini speaks Italian, English, Spanish and French.

Fognini began his professional career by playing a variety of Futures and Challenger tournaments, winning his first Futures title in 2005 at Spain #1 and another at Italy #9. In 2005, he also finished runner-up at Italy #3 and qualified for his first ATP Challenger tournament at Palermo. During 2006, Fognini had moderate success at Challengers and, after qualifying, made his debut on the ATP World Tour at Buenos Aires. He was defeated in the first round by Carlos Moyá, the eventual champion.