Petra Kvitová (Czech pronunciation: [ˈpɛtra ˈkvɪtovaː], English: /kəˈvɪtəvə/; born 8 March 1990) is a Czech professional tennis player. Known for her powerful left-handed shots and variety, she has won seven WTA singles titles. She reached her career-high ranking of world no. 2 in October 2011, and is currently ranked world no. 4. 

Kvitová won the 2011 Wimbledon Championships and the 2011 WTA Tour Championships singles titles, becoming the first Grand Slam event winner born in the 1990s, and the third player to win the WTA Championships in her first attempt. She also reached the semifinals of the 2010 Wimbledon Championships and the 2012 Australian Open.

Petra Kvitová was born to Jiří Kvita and Pavla Kvitová in Bílovec, Czech Republic (in 1990 still in Czechoslovakia). Her father Jiří introduced her to tennis. During her childhood, she admired Czech player Martina Navratilova. Kvitová trained in her hometown until the age of 16, and was then encouraged by an instructor to pursue a professional career in tennis.

Svetlana Aleksandrovna Kuznetsova ( Светла́на Алекса́ндровна Кузнецо́ва (help·info)); born June 27, 1985) is a Russian professional tennis player and as of May 7, 2012 ranked No. 28 in the WTA singles and No. 31 in the doubles ranking. Kuznetsova has appeared in four singles Grand Slam finals, winning two, and has also appeared in seven doubles finals, winning twice. She has qualified five times for the round-robin stage of the WTA Tour Championships but has never qualified for the semifinals.

Her first Grand Slam title came at the 2004 US Open, making her the third Russian woman to win a Grand Slam title, after Anastasia Myskina and Maria Sharapova who won at the 2004 French Open and 2004 Wimbledon tournaments respectively. Kuznetzova's second Grand Slam title was the 2009 French Open, defeating Serena Williams in the quarterfinal, Samantha Stosur in the semifinal, and compatriot Dinara Safina in the final in straight sets. At the 2006 French Open and the 2007 US Open singles tournament she was the runner-up, both times to Belgian player Justine Henin. As a result, Kuznetsova obtained her new WTA ranking of No. 2, her best to that date. Kuznetsova has won a total of 13 WTA and 1 ITF singles titles and 15 WTA doubles titles to date and US$16,372,146 in prize money, making her the second top Russian earner on court and number 11 of all female tennis players to date and No. 5 of active players, after only Serena Williams, Venus Williams, Kim Clijsters, and Maria Sharapova respectively.

Venus Ebony Starr Williams (born June 17, 1980), is an American professional tennis player who is a former World No. 1 and is ranked World No. 53 as of May 28, 2012 in singles. She has been ranked World No. 1 in singles by the Women's Tennis Association on three separate occasions. She became the World No. 1 for the first time on February 25, 2002, becoming the first black woman to achieve this feat during the Open Era.

Her 21 Grand Slam titles ties her for twelfth on the all time list and is more than any other active female player except for her younger sister Serena Williams. Venus Williams' titles consist of: seven in singles, twelve in women's doubles, and two in mixed doubles. Those seven Grand Slam singles titles ties her with four other women for twelfth place on the all-time list. Her five Wimbledon singles titles ties her with two other women for eighth place on the all-time list. Venus Williams is one of only three women in the open era to have won five or more Wimbledon singles titles. From the 2000 Wimbledon Championships through the 2001 US Open, Williams won four of the six Grand Slam singles tournaments held. She is one of only five women in the open era to win 200 or more main draw Grand Slam singles matches.

Angelique Kerber (born 18 January 1988 in Bremen) is a professional German tennis player. Kerber has a career high ranking of world no. 10, achieved on 21 May 2012 and is currently the highest ranked German. She has competed as a professional since 2003, and has won 11 ITF titles, and two WTA titles at the 2012 Open GDF Suez and the 2012 e-Boks Open. She has also reached one Grand Slam semi-final at the 2011 US Open.

She is born in Bremen, to father Slawek Kerber and mother Beata, and has one sister. She started playing tennis at age 3, eventually joining the junior circuit, making inroads at events in Germany and elsewhere in Europe, but didn't win a junior title before 2003 at which point she turned professional at the age of 15. Kerber speaks German, Polish and English.

In 2003 obtained her first top 100 victory by defeating Marion Bartoli in the qualifying draw of the WTA German Open 3–6, 6–3, 6–4.

In 2004 Kerber started the year by reaching the finals of an ITF event in Warsaw losing to Marta Domachowska 7–6, 3–6, 6–3 in the finals. She attained her first ITF title entering as a qualifier in Opole, Poland, by defeating Elena Tatarkova 6–2, 6–2 in the finals.

Anastasia Sergeyevna Pavlyuchenkova (Russian: Анастасия Сергеевна Павлюченкова, Russian pronunciation: [ɑnɑstɑˈsijə.pɑvlʉˈt͡ɕɛnkova]; born 3 July 1991) is a Russian professional tennis player and a multiple junior Grand Slam champion. Her career-high rank of World No. 13 was achieved on 4 July 2011. From July 2007 to September 2009 she was coached at the Mouratoglou Tennis Academy in France. Since then she has been coached by her brother Aleksandr Pavlyuchenkov.

Born in Samara, Russia, then part of the Soviet Union in its final months, Pavlyuchenkova first made headlines by winning the 2006 Australian Open junior title by defeating Caroline Wozniacki. She then won the US Open junior title against Tamira Paszek and defended her Australian Open title in 2007, defeating Madison Brengle. Anastasia played for the Sacramento Capitals of the World Team Tennis league in the summer of 2006.

Her success in juniors enabled her to enter ITF and WTA tournaments, winning a small ITF tournament in Italy in May 2006. In October 2006 Pavlyuchenkova received a wild card into the Kremlin Cup and lost in the first round to rising Czech Nicole Vaidišová 6–3 6–3. She then barely missed out on qualifying for the main draw of the 2007 Australian Open, losing to Julia Vakulenko in the final round of qualifying.