Kristof Vliegen (born 22 June 1982 in Maaseik) is a former Belgian tennis player. He plays right-handed and he turned professional in 2001.

He was a semi-finalist in Chennai in 2006 and in May of the same year, he reached the final of the ATP tournament in Munich, setting up the first ever all-Belgian men's singles final against Olivier Rochus. In July, Vliegen reached the second round of Wimbledon.

In Doha, the first tournament of the year he defeated Spaniard Óscar Hernández with 6-1, 6-7 and 6-7. In the next round he faced German Philipp Kohlschreiber. He was defeated in three straight sets 4-6, 7-6 and 6-4. At the Australian open he met Italian Simone Bolelli but lost in three long sets 6-7, 5-7 and 6-7. One week later he started in the SA Tennis Open as the seventh seed. In the first round he won in two straight sets of unranked Ross Hutchins. In the next round he defeated Czech Jan Minar. In the quarterfinals he lost to world number 6 Jo-Wilfried Tsonga in straight sets 4-6 and 1-6. At the Open 13 in Marseille he faced Czech Jan Hernych in the first round but lost in three sets: 6-3, 3-6 and 6-4.

Xavier Malisse (born 19 July 1980) is a Belgian tennis player. Born in Kortrijk, Belgium, he is the only men's player from his country to have been ranked in the top 20 of the ATP tour, with a career-high singles ranking of World No. 19. His nickname is "The X-Man".

Malisse turned professional in 1998. His best performance in Grand Slam singles competition was at the 2002 Wimbledon championships, where he reached the semifinal, beating Britain's Greg Rusedski in five sets en route, as well as former champion Richard Krajicek. He eventually lost to runner-up David Nalbandian, again in five sets. Malisse and Olivier Rochus won the French Open doubles championship in 2004. He won three ATP tour singles titles: Delray Beach in 2005 and 2007, and Chennai in 2007.

After a difficult year, Malisse was just No. 205 of the world. In his first tournament of the year in Brisbane he lost in the last qualifying round to American Bobby Reynolds. A week later, in Medibank International Sydney he reached the main draw but lost to Mario Ančić in the first round. At the Australian Open he first won his qualifying matches. In the first round of the main draw he won against Michaël Llodra. But in the next round he lost to Andy Roddick in four sets. In October he won a challenger tournament in Lyon and this pushed him back into the worlds top 100 for the first time in nearly two years

James Riley Blake (born December 28, 1979) is an American professional tennis player. Blake is known for his speed and powerful, flat forehand. As of April 2012, Blake is ranked World No. 74 among active male players with 24 career finals appearances (10–14 record), whilst his career-high singles ranking is World No. 4. His career highlights include reaching the final of the 2006 Tennis Masters Cup, the semifinals of the Beijing Olympics and the quarterfinals of the Australian Open (2008) and US Open (2005, 2006). His two titles for the United States at the Hopman Cup are an event record. Blake was a key performer for the United States 2007 Davis Cup championship team, going 2–0 in the championship tie vs. Russia at second singles. In 2005, Blake was presented with the Comeback Player of the Year award for his remarkable return to the tour. Later, in 2008, Blake was awarded another honor by the ATP where he was named the Arthur Ashe Humanitarian of the Year. On July 3, 2007, Blake's autobiography Breaking Back: How I Lost Everything and Won Back My Life, which discussed his comeback after his unlucky 2004 season, was released and debuted at No. 22 on the New York Times Best Seller list. He co-wrote this book with Andrew Friedman.

Marat Mikhailovich Safin (Russian: Марат Михайлович Сафин, Tatar: Марат Мөбин улы Сафин, Marat Möbin uğlı Safin) (born January 27, 1980) is a Russian politician and retired tennis player of Tatar descent. Safin won two grand slams and reached the World No. 1 ranking during his career. He was also famous for his emotional outbursts and sometimes fiery temper on court. Safin also holds the record for most broken racquets in a year with 87. Safin is the older brother of former World No. 1 WTA player Dinara Safina (Dinara Mikhailovna Safina) (Russian: Динара Михайловна Сафина), born April 27, 1986 in Moscow. They are the first brother-sister tandem in tennis history to both achieve No. 1 rankings.

Safin began his professional career in 1997, and held the No. 1 world ranking for a total of 9 weeks between November 2000 and April 2001. He won his first Grand Slam title at the 2000 U.S. Open after defeating Pete Sampras, and won the 2005 Australian Open, defeating Australian Lleyton Hewitt in the final. Safin helped lead Russia to Davis Cup victories in 2002 and 2006. Despite his dislike of grass courts, he became the first Russian man to reach the semi-finals of Wimbledon at the 2008 Wimbledon Championships. At the time of his final Grand Slam appearance at the US Open on September 2, 2009, Safin was No. 58 in the official world men's tennis rankings.

Joachim Johansson (born 1 July 1982) is a former professional male tennis player from Sweden. He reached the semi-finals of the 2004 US Open - Men's Singles and achieved a career-high singles ranking of World No. 9.

Johansson was born in Lund and currently lives in Södertälje, Sweden. His father, Leif Johansson, was also a tennis player and represented Sweden in the Davis Cup in the 1970s. He goes by the nickname "Pim Pim", which he has been called since he was a newborn. His elder brother pronounced Joachim as "Joapim" which later became "Pim Pim". In 2005, Swedish hurdler Jenny Kallur became his girlfriend but in August 2008 they separated.Lleyton Hewitt's sister, Jaslyn Hewitt, was his girlfriend for five years from 2000 to 2005. Since April 2009 he is engaged to Johanna Westerberg, a Swedish professional golfer on the Ladies European Tour, and they are expecting their first child.

He is not related to fellow Swedish tennis player Thomas Johansson.

Johansson competed in his first professional tour match in the 2000 Wideyes Swedish Open, where he retired against Markus Hipfl 3–6 in the first set. He then claimed his first win the a challengers event in Sweden defeating Alexander Peya 7–6(6), 7–6(3). He then competed in the 2000 Scania Stockholm Open losing to Bohdan Ulihrach 4–6, 5–7.