Question: Are Svetlana Kuznetsova and Alex O'Brien both retired?

full_context: Document 1: Elena Vesnina: Elena Sergeyevna Vesnina (Russian: Еле́на Серге́евна Веснина́ ] ; born 1 August 1986) is a Russian professional tennis player. Her career-high rankings are world No. 13 in singles and World No. 3 in doubles. Vesnina is a four-time Grand Slam champion in doubles competition, having won the 2013 French Open, 2014 US Open, and 2017 Wimbledon Championship tournaments with Ekaterina Makarova, and the 2016 Australian Open mixed doubles title with Bruno Soares.
Document 2: Elena Dementieva: Elena Viacheslavovna Dementieva (Russian: Еле́на Вячесла́вовна Деме́нтьева , ] ; born 15 October 1981) is a retired Russian tennis player. Dementieva won the singles gold medal at the 2008 Olympics in Beijing, having previously won the silver medal at the 2000 Olympics in Sydney. She won 16 WTA singles titles, reached the finals of the 2004 French Open and 2004 US Open and reached seven other Grand Slam semi finals. Dementieva was also part of the Russian team that won the 2005 Fed Cup, won the 2002 WTA Championship doubles with Janette Husárová and was the runner-up in two US Open doubles finals – in 2002 with Husárová and in 2005 with Flavia Pennetta. Dementieva achieved a career-high ranking of World No. 3, which was accomplished on 6 April 2009. She announced her retirement on 29 October 2010, after her final match at the 2010 WTA Tour Championships. Dementieva ended her career ranked World No. 9 and between 2003 and 2010 she only ended one year, in 2007, outside the top 10.
Document 3: Svetlana Kuznetsova: Svetlana Aleksandrovna Kuznetsova (Russian: Светла́на Алекса́ндровна Кузнецо́ва ; ] ; born 27 June 1985) is a Russian tennis player. Kuznetsova has appeared in four Grand Slam singles finals, winning two, and has also appeared in seven doubles finals, winning twice. As a doubles player, Kuznetsova has reached the finals of each Grand Slam at least once, winning the Australian Open twice. She is currently the No. 8 ranked player on the WTA rankings.
Document 4: Bob Bryan: Robert Charles Bryan (born April 29, 1978) is an American male professional tennis player. He has won twenty-three Grand Slam titles: 16 in men's doubles and 7 in mixed doubles. He turned professional in 1998. With his twin brother Mike, he has been world No. 1 doubles player for much of the last several years, first achieving the top ranking in September 2003. The brothers were named ATP Team of the Decade for 2000–2009. The brothers became the second men's doubles team to complete the career golden slam at the 2012 Summer Olympics.
Document 5: Vera Zvonareva: Vera Igorevna Zvonareva (Russian: Ве́ра И́горевна Звонарёва ; ] ; born 7 September 1984) is a Russian professional tennis player. She was introduced to tennis at the age of six and turned professional in 2000. Her career high is world No. 2 by the WTA. Zvonareva has won twelve WTA Tour singles titles and reached the finals of the 2008 WTA Tour Championships, 2010 Wimbledon Championships, and 2010 US Open. She also was a bronze medalist at the 2008 Beijing Olympics. In doubles, she has won four Grand Slam titles. Two of the titles came in women's doubles, the first one at the 2006 US Open, partnering Nathalie Dechy, and the other at the 2012 Australian Open, partnering Svetlana Kuznetsova. Her other two came in mixed doubles, the first at the 2004 US Open, partnering Bob Bryan, and her second at the 2006 Wimbledon Championships, partnering Andy Ram.
Document 6: Maria Sharapova: Maria Yuryevna Sharapova (Russian: Мари́я Ю́рьевна Шара́пова ; ] ; born April 19, 1987) is a Russian professional tennis player. A United States resident since 1994, Sharapova has competed on the WTA tour since 2001. She has been ranked world No. 1 in singles by the WTA on five separate occasions, for a total of 21 weeks. She is one of ten women, and the only Russian, to hold the career Grand Slam. She is also an Olympic medalist, having earned silver for Russia in women's singles at the 2012 Summer Olympics in London.
Document 7: 2001 Indian Wells Masters – Men's Doubles: Alex O'Brien and Jared Palmer were the defending champions but they competed with different partners that year, O'Brien with Sébastien Lareau and Palmer with Byron Black.
Document 8: Rick Leach: Rick Leach (born December 28, 1964) is a former professional tennis player and a coach from the United States. A doubles specialist, he won five Grand Slam men's doubles titles (three Australian Open, one Wimbledon, one US Open), and four Grand Slam mixed doubles titles (two Australian Open, one Wimbledon, one US Open). Leach reached the World No. 1 doubles ranking in 1990.
Document 9: Jim Courier: James Spencer Courier Jr. (born August 17, 1970) is an American former World No. 1 professional tennis player. During his career, he won four Grand Slam singles titles, two at the French Open and two at the Australian Open. He holds the record for being the youngest man to have reached the finals of all four Grand Slam singles tournaments, at the age of 22 years and 11 months. He also won five Masters 1000 series titles. Until Novak Djokovic in 2016, Courier was the last man to win both the Australian and French Opens in the same calendar year.
Document 10: Lucie Šafářová: Lucie Šafářová (] ; born 4 February 1987) is a Czech professional tennis player from Brno. She is currently the WTA world No. 1 doubles player. Šafářová has won seven WTA tour singles titles, fifteen doubles titles and reached the quarterfinals of the 2007 Australian Open by upsetting defending champion Amélie Mauresmo in the fourth round. She reached her first Grand Slam semifinal at the 2014 Wimbledon Championships and her first Grand Slam final at the 2015 French Open. She also won the 2015 Australian Open, 2015 French Open, 2016 US Open, 2017 Australian Open and 2017 French Open women's doubles titles partnering with Bethanie Mattek-Sands.
Document 11: Bent-Ove Pedersen: Bent-Ove Pedersen (born 11 July 1967 in Oslo) is a former tennis player from Norway, who turned professional in 1992. He spent several years playing tennis at Berkeley in California. The right-hander represented his native country in the doubles competition at the 1992 Summer Olympics in Barcelona, where he partnered Christian Ruud. The pair was defeated in the first round by South Africa's eventual runners-up Wayne Ferreira and Piet Norval. Pedersen reached his highest singles ATP-ranking on 13 September 1993, when he became the number 366 of the world. He was in quarterfinal in US Open doubles, 1991, partnering Matt Lucena from the US. He became the number 78 on the doubles ranking 30. August 1993.
Document 12: Anastasia Myskina: Anastasiya Andreyevna Myskina (Russian: Анастасия Андреевна Мыскина ; ] ; born 8 July 1981) is a Russian former tennis player. She won the 2004 French Open singles title, becoming the first Russian female tennis player to win a Grand Slam singles title. Subsequent to this victory, she rose to No. 3 in the WTA rankings, becoming the first Russian female tennis player to reach the top 3 in the history of the rankings. In September 2004, she reached a career-high ranking of No. 2. She has not officially retired, but has been inactive on the WTA Tour since May 2007.
Document 13: Alex O'Brien: Alex O'Brien (born March 7, 1970 in Amarillo, Texas) is a retired professional tennis player from the United States, who competed on the ATP Tour. He became the world No. 1 doubles player in May 2000 and was ranked as high as world No. 30 in singles in June 1997.
Document 14: Ekaterina Makarova: Ekaterina Valeryevna Makarova (Russian: Екатери́на Вале́рьевна Мака́рова ; ] ; born on 7 June 1988) is a Russian professional tennis player. She achieved her career-high ranking of number 8 on 6 April 2015. Her best Grand Slam singles results have come at the 2014 US Open and the 2015 Australian Open where she reached the semifinals on both occasions. Makarova is a four-time Grand Slam champion in doubles competition, having won the 2012 US Open mixed doubles tournament with Bruno Soares, and the 2013 French Open, the 2014 US Open and 2017 Wimbledon Championships with Elena Vesnina.
Document 15: Andre Agassi: Andre Kirk Agassi ( ; born April 29, 1970) is an American retired professional tennis player and former World No. 1 who was one of the sport's most dominant players from the early 1990s to the mid-2000s. Generally considered by critics and fellow players to be one of the greatest tennis players of all time, Agassi has been called the greatest service returner in the history of the game. Described by the BBC upon his retirement as "perhaps the biggest worldwide star in the sport's history", Agassi compiled performances that, along with his unorthodox apparel and attitude, saw him cited as one of the most charismatic players in history. As a result, he is credited for helping to revive the popularity of tennis during the 1990s.
ground_truth: no