Ana Ivanovic (Serbian Cyrillic: Ана Ивановић, Ana Ivanović; Serbian pronunciation: [âna iʋǎːnoʋitɕ] ( listen)) (born November 6, 1987, in Belgrade, SR Serbia, SFR Yugoslavia) is a former world no. 1 Serbian tennis player. As of May 28, 2012, she is ranked 14th on the Women's Tennis Association (WTA) rankings. She beat Dinara Safina to win the 2008 French Open and was the runner-up in singles at the 2007 French Open and the 2008 Australian Open. Competing as a professional since 2003, she has won 11 WTA Tour singles titles. When on form, Ivanovic is known for her aggressive style of play.

Ivanovic's mother Dragana (Драгана), a lawyer, supports her daughter during most of her matches. Her father Miroslav (Мирослав), a self-employed businessman, attends as many events as he possibly can. Ana has a younger brother, Miloš (Милош), with whom she loves to play basketball.

Aside from her tennis career, Ivanovic also studies finance at a university in Belgrade and Spanish in her spare time. Her inspiration to begin playing was Monica Seles, who at that time played for Yugoslavia.

Serena Jameka Williams (born September 26, 1981) is an American professional tennis player and a former world no. 1. The Women's Tennis Association has ranked her world no. 1 in singles on five separate occasions. She became the world no. 1 for the first time on July 8, 2002 and regained this ranking for the fifth time on November 2, 2009. She is the only female player to have won over $35 million in prize money.

Her 27 Grand Slam titles places her ninth on the all-time list: 13 in singles, 12 in women's doubles, and 2 in mixed doubles. She is the most recent player, male or female, to have held all four Grand Slam singles titles simultaneously and only the fifth woman in history to do so. She was also the first woman, along with sister Venus Williams, to hold all four Grand Slam doubles titles simultaneously since Martina Hingis did so in 1998. Her 13 Grand Slam singles titles is sixth on the all-time list. Williams ranks fourth in Grand Slam women's singles titles won during the open era, behind Steffi Graf (22 titles) and Chris Evert and Martina Navratilova (18 titles each). She has won more Major titles in singles, doubles, and mixed doubles than any other active player, male or female.

Kiki Bertens (born 10 December 1991) is a Dutch tennis player. Her highest WTA singles ranking is 92, which she reached on 30 April 2012. Her career high in doubles is 189, achieved on 9 April 2012. She currently is the third best ranked Dutch player on the WTA ranking.

Bertens started the year at the Australian Open, playing the qualifications. She played in the first round against top seed Vesna Dolonts. She won the first 10 games before Dolonts retired, leaving her with a 6–0, 4–0 win. She faced Ukraine's Olga Savchuk in the second round losing an close match with 4–6, 7–6, 3–6.

The next week, in an ITF 25K event in Andrezieux-Boutheon, Kiki retired with a thigh injury in the first round against Italian Corinna Dentoni.

She then played in the Fed Cup for the Dutch team, competing in Group 1 of Europe/Africa. She partnered with Demi Schuurs in the match against the Portugese team of Barbara Luz and Margarida Moura 6-6, 6-0. She won her singles rubber against Estonia's Eva Paalma, 6–2, 6–2, and together with Michaella Krajicek she double-bageled Anett Kontaveit and Tatjana Vorobjova in the doubles match.

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.

Samantha "Sam" Jane Stosur (English pronunciation: /ˈstoʊzər/ STOH-zər, born 30 March 1984) is an Australian professional tennis player. She won the 2011 US Open singles title and was a finalist at the 2010 French Open. Stosur is ranked World No. 6 and her career high in singles is World No. 4, achieved on 21 February 2011. She is a former world No. 1 on the WTA Tour in doubles with Lisa Raymond from the United States.

Stosur was born in Brisbane, Queensland, the daughter of Tony and Diane, and has two brothers, Dominic and Daniel. She is of Polish descent through her grandfather. When she was six, the family house and business on the Gold Coast was destroyed by a flood, and the family moved to Adelaide. There she started playing tennis, when she was given a racquet for Christmas at the age of eight. While her parents worked long hours at the cafe they had started, Stosur played at local courts with older brother Daniel, who later encouraged their parents to take her to tennis lessons. Stosur attended Helensvale State High School on the Northern Gold Coast. She went away on her first overseas trip at the age of 13, competing in the World Youth Cup in Jakarta, Indonesia.