Jelena Janković (Serbian Cyrillic: Јелена Јанковић, ] , born 28 February 1985) is a Serbian professional tennis player.
 Janković is a former World No. 1 in singles, a ranking achieved preceding her finals appearance at the 2008 US Open.
 Janković's career highlights include winning the 2007 Wimbledon Mixed Doubles title with Jamie Murray, the 2010 Indian Wells Masters, the Internazionali BNL d'Italia twice, in 2007 and 2008, and the aforementioned appearance in the finals of the 2008 US Open.
 She is coached by her brother Marko.
Mara Santangelo (born 28 June 1981) is a former professional tennis player from Italy.
 She retired from the sport on 28 January 2011.
Jelenin svet ("Jelena's World") is a 2008 independent documentary film written and directed by Tanja Brzaković, about former World No. 1 female tennis player, Jelena Janković.
Patty Schnyder (born 14 December 1978) is a Swiss professional tennis player.
 She reached number 7 in the world rankings.
 She twice defeated a reigning world no. 1 player in her career: Martina Hingis at the 1998 Grand Slam Cup and Jennifer Capriati at the 2002 Family Circle Cup.
 In addition, she has defeated former number 1s Lindsay Davenport, Serena Williams, Arantxa Sánchez Vicario, Steffi Graf, Kim Clijsters, Justine Henin, Amélie Mauresmo, Maria Sharapova, Jelena Janković, Ana Ivanovic and Caroline Wozniacki.
Rossana de los Ríos (born 16 September 1975) is a retired professional tennis player from Paraguay.
 She was born in the Paraguayan capital, Asunción, and now lives in Miami, USA, with her daughter Ana Paula Neffa de los Ríos and her husband Gustavo Neffa, a retired Paraguayan Association football player who played for Boca Juniors.
 Rossana achieved a career high singles ranking of No. 51 on 12 September 2001, and No. 52 in doubles on the Sony Ericsson WTA Tour.
 De los Ríos played doubles with Grand Slam champions such as Maria Sharapova, Svetlana Kuznetsova, Arantxa Sánchez Vicario, as well as Jelena Janković and Dinara Safina.
 Rossana is also a former world number one Junior player, having won the 1992 Roland Garros Juniors event.
 De los Ríos participated in six editions (1994, 2001, 2002, 2003, 2009 and 2010) of the Australian Open.
 She was the only female tennis representative for Paraguay in the 1992 and 2000 Olympic Games.
Nagpur Orangers is a tennis team representing the Indian city of Nagpur in Champions Tennis League.
 The players representing this team are Àlex Corretja, Feliciano López, Jelena Janković, Divij Sharan.
This is a list of the main career statistics of Serbian professional tennis player and former World No. 1, Jelena Janković.
 To date, Janković has won 15 WTA singles titles including four WTA Tier I singles titles, one WTA Premier Mandatory singles title and one WTA Premier 5 singles title.
 Janković was also the runner-up in singles at the 2008 US Open, a semi-finalist at the year-ending WTA Tour Championships in 2008, 2009 and 2013 and a quarterfinalist at the 2008 Beijing Olympics.
Aravane Rezaï (] ; Persian: ارغوان رضایی‎ ‎ "Arghavān-e Rezāyi" ] , born 14 March 1987) is an Iranian–French tennis player.
 She has defeated many top players on the WTA circuit, such as Justine Henin, Venus Williams, Victoria Azarenka, Maria Sharapova, Dinara Safina, Francesca Schiavone, Caroline Wozniacki, Marion Bartoli, Flavia Pennetta, Jelena Janković and Ai Sugiyama.
 Her career high rank was No. 15, achieved on 11 October 2010.
Serbian tennis players Ana Ivanovic and Jelena Janković are both former world No. 1 and have met 12 times so far.
 Their overall head-to-head series is 9–3, in Ivanovic's favor.
 Janković is two years older than Ivanovic, so their paths connect them to play each other.
 They are the first female players to achieve major successes for independent Serbia.
Vojislava Lukić (Serbian Cyrillic: Војислава Лукић; born 31 March 1987) is a professional Serbian tennis player.
 Born and raised in Subotica, she achieved her highest career ranking as world number 203 in singles on 20 August 2007, and world number 223 in doubles on 8 October 2007.
 As of 15 December 2014, Lukić is ranked world number 433 in singles.
 Lukić has so far won eight ITF titles in singles and four in doubles.
 She also played for Serbia Fed Cup team in 2007, alongside Jelena Janković, Ana Jovanović and Ana Timotić.

Question: Are Mara Santangelo and Jelena Janković both professional tennis players?
Answer: yes