John Robert Isner (born April 26, 1985) is an American professional tennis player. He achieved his career-high rank of no. 9 on March 19, 2012, and is currently the second highest-ranked American tennis player. His most famous victories were against Roger Federer in the Davis Cup encounter in February 2012, Top seed Novak Djokovic at the 2012 Masters 1000 tournament in Indian Wells, Andy Roddick in the 2009 US Open, and against Nicolas Mahut at the 2010 Wimbledon Championships where he played the longest ever professional tennis match, which lasted 11 hours and 5 minutes over the course of three days.

Unlike many top tennis players, who have brilliant juniors careers and hit the ATP Tour in their teens, Isner didn't decide that he wanted to play professional tennis until he was 21.

Isner played collegiate tennis at the University of Georgia from 2004 to 2007 and became the school's all-time leader in singles and doubles victories, earning All-American honors each of his four years and leading Georgia to the 2007 NCAA championship.

Jo-Wilfried Tsonga (French pronunciation: [(d)ʒo vilfʁid t͡sɔŋɡa]; born (1985-04-17)April 17, 1985) is a French professional tennis player. He was born in Le Mans, to a French mother, Évelyne, and a Congolese father, Didier, who moved to France in the 1970s to play handball. Tsonga is a member of the Tennis Club de Paris (TCP). His current career-high singles ranking is World No. 5, which he achieved on February 27, 2012.

Tsonga rose to fame by virtue of his performance in the 2008 Australian Open when, as an unseeded player, he reached the final, having defeated four seeded players along the way, including earning a straight sets win over the then world number two Rafael Nadal in the semifinals. Tsonga eventually lost to the then world no. 3 Novak Djokovic in the final in four sets, after winning the first set, the only set Djokovic dropped during the tournament.

Tsonga followed this up by winning his first ATP Masters Series championship at the 2008 Paris Masters, thus qualifying for the 2008 Tennis Masters Cup in Shanghai, China. His best performances in a major tournament since 2008 are semifinal appearances in the 2010 Australian Open and 2011 Wimbledon Championships. He also reached the final of the 2011 ATP World Tour Finals where he lost to five-time and defending champion Roger Federer.

Mardy Simpson Fish (born December 9, 1981) is an American professional tennis player, and Olympic silver medalist. He is a hardcourt specialist. He is one of several American tennis players who rose to prominence in the early 2000s.

Fish has won six tournaments on the main ATP Tour, and has reached the final of four Masters Series events: Cincinnati in 2003 and 2010, Indian Wells in 2008, and Montreal in 2011. His best result at a Grand Slam tournament has been reaching the quarter final stage at the 2007 Australian Open, the 2008 US Open, and the 2011 Wimbledon Championships.

In April 2011, Fish overtook compatriot Andy Roddick to become the American No. 1 in the ATP rankings. As of 21 November 2011, he is ranked World No. 8. His current career-high singles ranking is World No. 7.

Fish is the son of a tennis teaching professional and a housewife, Tom and Sally Fish. He was born in Edina, Minnesota. In 1984 a Minneapolis TV station ran a profile of Fish, at the age of two, hitting tennis balls from the baseline over the net. In 1986, Fish's family moved to Vero Beach, Florida. He attended Vero Beach High School for tenth grade, then moved to Boca Prep in Boca Raton, Florida for his junior and senior years of high school. He, Andy Roddick, and Jesse Levine all attended Boca Prep International School. During 1999 he lived with Roddick's family, and the two played on the same tennis and basketball teams.

Philipp Kohlschreiber (born 16 October 1983 in Augsburg) is a tennis player from Germany, who turned professional in 2001. The right-hander has won six doubles and four singles titles. Kohlschreiber reached his highest ATP singles ranking of World No. 22 on 28 September 2009.

In 2007, Kohlschreiber achieved his greatest result at an ATP Masters Series event during the Monte Carlo Masters, when he reached the quarter-finals after going through qualifying, defeating World No. 12 David Nalbandian in the second round. He won his first career title in Munich defeating Mikhail Youzhny, thereby becoming the first German player to win the event since Michael Stich in 1994.

Kohlschreiber started 2008 by reaching the quarter-finals of the tournament in Doha, Qatar and winning his second career title in Auckland, New Zealand, where he defeated Juan Carlos Ferrero in the final.

After Kohlschreiber's win in Auckland, he defeated World No. 6 Andy Roddick in the third round of the Australian Open 6–4, 3–6, 7–6, 6–7, 8–6. Kohlschreiber hit a personal record 32 aces and 104 winners. He eventually lost in the fourth round to Jarkko Nieminen 6–3, 6–7, 6–7, 3–6. Kohlschreiber failed to convert 11 set points in the second (7) and third (4) sets.

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.