Question: Which American professional tennis player born in 1980 was a defending champion during the 2010 Wimbledon Championships – Women's Doubles?

full_context: Document 1: 2010 Billie Jean King Cup: The 2010 Billie Jean King Cup was the 2nd edition of this tennis exhibition tournament. Seven-time Grand Slam champion Venus Williams, 2009 French Open Champion Svetlana Kuznetsova, and 2009 US Open Champion Kim Clijsters participated. 2009 Australian Open and Wimbledon Champion Serena Williams had to withdraw from the event due to a leg injury. She was replaced by 2008 French Open Champion Ana Ivanovic. In the first semifinal, Clijsters defeated Ivanovic in a tiebreaker (7–2), despite Ivanovic having match point at 5–4 up. Williams defeated Kuznetsova in the second semifinal, 6–4. Williams defeated Clijsters in the championship match by a score of 6–4 3–6 7–5.
Document 2: 2015 US Open – Women's Doubles: Ekaterina Makarova and Elena Vesnina were the defending champions, but Makarova decided not to participate. Vesnina played alongside Eugenie Bouchard, but they withdrew from their second round match because of a concussion sustained by Bouchard.
Document 3: Serena Williams: Serena Jameka Williams (born September 26, 1981) is an American professional tennis player. The Women's Tennis Association (WTA) has ranked her world No. 1 in singles on eight occasions, from 2002 to 2017. She became the world No. 1 for the first time on July 8, 2002. On the sixth occasion, she held the ranking for 186 consecutive weeks, tying the record set by Steffi Graf for the most consecutive weeks as world No. 1 by a female tennis player. In total, she has been world No. 1 for 319 weeks, which ranks her third in the Open Era among female tennis players. Some commentators, players and sports writers regard her as the greatest female tennis player of all time.
Document 4: 2014 BNP Paribas Open – Women's Doubles: Ekaterina Makarova and Elena Vesnina were the defending champions, but lost in the quarterfinals to Cara Black and Sania Mirza.<br>Hsieh Su-wei and Peng Shuai won the title, defeating Black and Mirza in the final, 7–6, 6–2.
Document 5: 2015 Rogers Cup – Women's Doubles: Sara Errani and Roberta Vinci were the defending champions, but chose not participate together. Errani played alongside Flavia Pennetta, but lost in the quarterfinals to Bethanie Mattek-Sands and Lucie Šafářová. Vinci teamed up with Jelena Janković, but lost in the first round to Garbiñe Muguruza and Carla Suárez Navarro.<br>
Document 6: Althea Gibson: Althea Gibson (August 25, 1927 – September 28, 2003) was an American tennis player and professional golfer, and the first black athlete to cross the color line of international tennis. In 1956, she became the first person of color to win a Grand Slam title (the French Open). The following year she won both Wimbledon and the U.S. Nationals (precursor of the U.S. Open), then won both again in 1958, and was voted Female Athlete of the Year by the Associated Press in both years. In all, she won 11 Grand Slam tournaments, including six doubles titles, and was inducted into the International Tennis Hall of Fame and the International Women's Sports Hall of Fame. "She is one of the greatest players who ever lived," said Robert Ryland, a tennis contemporary and former coach of Venus and Serena Williams. "Martina couldn't touch her. I think she'd beat the Williams sisters." In the early 1960s she also became the first black player to compete on the women's professional golf tour.
Document 7: List of WTA number 1 ranked tennis players: The list of WTA number 1 ranked players shows the professional women's tennis players who have been or currently are ranked world No. 1 by the Women's Tennis Association, along with the dates of first reaching and losing that spot. Since the WTA began producing computerized rankings on November 3, 1975, 24 women have reached the highest singles ranking and 35 women the highest doubles ranking. The WTA Rankings are a merit-based method for determining the rankings in women's tennis and the WTA releases ranking points weekly based on how players fared during the previous 52 weeks.
Document 8: Venus Williams: Venus Ebony Starr Williams (born June 17, 1980) is an American professional tennis player who is currently ranked world No. 5 in the WTA singles rankings. She is generally regarded as one of the all-time greats of women's tennis and, along with younger sister Serena Williams, is credited with ushering in a new era of power and athleticism on the women's professional tennis tour.
Document 9: 2010 Wimbledon Championships – Women's Doubles: Venus Williams and Serena Williams were the defending champions, but lost in the quarterfinals to Elena Vesnina and Vera Zvonareva.
Document 10: Roberta Vinci: Roberta Vinci (] ; born 18 February 1983) is an Italian tennis player. Up until 6 April 2015, she held the position of World No. 1 in doubles, while reaching a career-high of World No. 7 in singles in May 2016. She is the fourth Italian woman to have reached the top 10 in singles, together with Flavia Pennetta, Francesca Schiavone and Sara Errani. At 33 years and 4 days old, she is also the oldest ever player to make her first appearance in the Top 10.
Document 11: 2009 Serena Williams tennis season: Serena Williams's 2009 tennis season officially began at the 2009 Medibank International Sydney. Williams finished the year ranked world no. 1 for the second time in her career, having played in 16 tournaments, more than any other year. She also broke the record previously set by Justine Henin for the most prize money earned by a female tennis player in one year, with Williams earning $6,545,586. In doubles, she finished the year ranked world no. 3, despite playing only six tournaments as a pair. She won five Grand Slam titles, putting her total Grand Slam titles at 23.
Document 12: Lindsay Davenport: Lindsay Ann Davenport Leach (born June 8, 1976) is an American former professional tennis player. She was ranked World No. 1 on eight different occasions, for a total of 98 weeks. Davenport is one of five women who have been the year-end World No. 1 at least four times (1998, 2001, 2004, and 2005) since 1975; the others are Chris Evert, Steffi Graf, Martina Navratilova and Serena Williams. She has achieved the No. 1 ranking in doubles as well.
Document 13: Garbiñe Muguruza: Garbiñe Muguruza Blanco (] ; born 8 October 1993) is a Spanish-Venezuelan tennis player who is currently ranked world No. 1 in singles by the Women's Tennis Association (WTA). Since turning professional in 2012, she has won five singles titles, including two majors at the 2016 French Open and the 2017 Wimbledon Championships.
Document 14: 2010 French Open – Women's Doubles: Anabel Medina Garrigues and Virginia Ruano Pascual were the defending champions, but they decided not to compete together. Ruano Pascual partnered up with Meghann Shaughnessy, but they lost in the first round against Cara Black and Elena Vesnina. Medina Garrigues partnered up with Liezel Huber, but they lost in the semifinals to Serena Williams and Venus Williams.
Document 15: Williams sisters: The Williams sisters are two professional American tennis players: Venus Williams (b. 1980), a seven-time Grand Slam title winner (singles), and Serena Williams (b. 1981), twenty-three-time Grand Slam title winner (singles), both of whom were coached from an early age by their parents Richard Williams and Oracene Price. There is a noted professional rivalry between them – between the 2001 US Open and the 2017 Australian Open tournaments, they met in nine Grand Slam singles finals. They became the first two players, female or male, to play in 4 consecutive grand slam singles finals from the 2002 French Open to the 2003 Australian Open; Serena famously won all 4 to complete the first of two "Serena Slams". Between 2000 and 2016, a 17-year span, they collectively won 12 Wimbledon singles titles (Venus won 5 and Serena won 7). By winning the 2001 Australian Open women's doubles title, they became the 5th pair to complete the Career Doubles Grand Slam and the only pair to complete the Career Doubles Golden Slam. At the time, Venus and Serena were only 20 and 19 years old, respectively. Since then they have gone on to add another two Olympic gold medals in the 2008 Beijing Olympics and the 2012 London Olympics. Nearly a decade later, the duo would go on to win 4 consecutive grand slam doubles titles from 2009 Wimbledon through 2010 Roland Garros, which would catapult them to co-No. 1 doubles players on 7 June 2010. Two weeks later, on 21 June 2010, Serena would hold the No. 1 singles ranking and Venus would be right behind her at No. 2 in singles. Their most recent grand slam doubles titles came at the 2012 Wimbledon & 2016 Wimbledon events. They remain very close, often watching each other's matches in support, even after one of them has been knocked out of a tournament.
ground_truth: Venus Williams