Gastón Norberto Gaudio (born December 9, 1978 in Temperley, Buenos Aires) is a former tennis player from Argentina. His career-high ATP singles ranking was World No. 5 in 2005. His most significant title win came at the 2004 French Open.

He learnt the game at the Temperley Lawn Tennis Club and his first coach was Roberto Carruthers. In addition to tennis Gaudio played football and rugby as a child and chose tennis to help out his parents financially when their business ran into economic problems.

Gaudio started playing tennis at the age of 6 and was ranked one hundred forty-five in the Argentine juniors behind Mariano Zabaleta. He turned professional in 1996 and in 1998 he won two ATP Challenger events in Santa Cruz, Bolivia over Luis Adrián Morejón and finished year by winning in Santiago defeating Karim Alami.

Gaudio won two consecutive Challengers in Nice and Espinho defeating Jacobo Díaz and Markus Hipfl respectively. Gaudio's first notable performance was when he reached the third round at the French Open as a qualifer, so he won 5 matches in total at the event, including coming back from two sets down to love in the second round against Bernd Karbacher to win 6–7, 4–6, 6–3, 6–1, 6–4, then losing to world number 6 Àlex Corretja in the next round .

Marcelo Alberto Bielsa Caldera (Spanish pronunciation: [marˈse̞lo̞ alˈβ̞e̞rto̞ ˈβ̞i̯e̞lsa ˈkalde̞ɾa], nicknamed Loco Bielsa, "Madman" Bielsa, born July 21, 1955) is an Argentine association football coach and former defender, born in Rosario, Santa Fe. He is considered one of the most innovative coaches in the modern era and is the current manager of the La Liga side Athletic Bilbao. He is seen as one of the main proponents of the game's recent renaissance of total football along with former Barcelona coach Pep Guardiola.

Bielsa has managed not only football clubs but also the national teams of Argentina and Chile. In the latter country he achieved cult status due to the improved results of the national team under his leadership. His personality and gestures have in Chile captured the attention of media and unleashed a series of minor controversies both in the area of sports and in politics.In 1980 shortly after retiring from playing in professional football, Bielsa decided to start a new career as a football manager. His first assignment was coaching the youth divisions of Argentine club Newell's Old Boys. In 1990 Bielsa was given the task of managing Newell's first team where he would later go on to win the 1990 Torneo Apertura and the 1990-91 Torneo Integración defeating Boca Juniors in penalties. El Loco managed the squad that competed in the final of the 1992 Copa Libertadores losing to São Paulo on penalties. Weeks later after enduring defeat in the Copa Libertadores final, Bielsa and Newell's won the 1992 Torneo Clausura.

Guillermo Sebastián Coria (born 13 January 1982 in Rufino, Santa Fe Province), nicknames include El Mago (The Magician in Spanish), is a retired professional tennis player from Argentina who was runner-up in the 2004 French Open. He was named after tennis champion and compatriot Guillermo Vilas.

As a junior, Coria won the boy's singles title at the 1999 French Open by beating his friend and fellow Argentine, David Nalbandian, 6–4, 6–3 in the final. One month later at the 1999 Wimbledon Championships, Coria and Nalbandian teamed up to win the boy's doubles title by beating Todor Enev and Jarkko Nieminen, 7–5, 6–4.

Coria turned professional in 2000, finishing 2003, 2004, and 2005 as a top-10 player. He was one of the fastest players on the Association of Tennis Professionals (ATP) tour, consistently showing great performances in clay-court tournaments. His playing style was that of a counter-puncher.

Coria tested positive for nandrolone in April 2001 and was initially suspended for two years. Coria claimed that the only supplement he was taking was a multivitamin made by a New Jersey supplements company. His family had a private lab test the multivitamin, which found them contaminated with steroids. Subsequently, the ATP reduced his suspension to only the seven months that had already passed. Coria sued the company for more than $10 million in lost prize money and endorsements and settled after the third day of the trial for an undisclosed amount.

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.

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.