Question: Victoria Azarenka and Caroline Wozniacki, were the defending champions, but they chose to compete in 2010 Dubai Tennis Championships instead, Vania King and Michaëlla Krajicek won in the final against Meghann Shaughnessy, and which U.S. professional tennis player who is presently ranked No. 2, in the women's doubles rankings?

Context paragraphs:
2010 Cellular South Cup – Doubles: Victoria Azarenka and Caroline Wozniacki were the defending champions, but they chose to compete in 2010 Dubai Tennis Championships instead. Vania King and Michaëlla Krajicek won in the final 7–5, 6–2 against Bethanie Mattek-Sands and Meghann Shaughnessy.

Bethanie Mattek-Sands: Bethanie Lynn Mattek-Sands (née Mattek; born March 23, 1985) is a U.S. professional tennis player who is presently ranked No. 2 in the women's doubles rankings.  Mattek-Sands is an Olympic Gold Medalist in mixed doubles, has won five Grand Slam titles in women's doubles and two in mixed doubles.  She lives in Phoenix, Arizona.

Dubai Tennis Championships: The Dubai Tennis Championships (also known as the Dubai Duty Free Tennis Championships for sponsorship reasons) (formerly known for sponsorship reasons as the Barclays Dubai Tennis Championships and the Dubai Duty Free Men's and Women's Championships) is a professional tennis tournament owned and organized by Dubai Duty Free and held annually in Dubai, United Arab Emirates on outdoor hardcourts.  The courts usually have a medium-fast speed considered to be similar in speed to the Shanghai and Swiss Indoor (Basel) courts, all of which are usually somewhat slower than the Cincinnati Master's Courts.  The tournament takes place at the end of February and organizes a men's and women's event.  The tournament takes place under the patronage of Sheikh Mohammed bin Rashid Al Maktoum, Vice-President and Prime Minister of the UAE and ruler of Dubai.  In 2001 the ATP upgraded the tournament from a 250 level to a more prestigious 500 level tournament.  Prior to the 1990s there was an annual Dubai Tennis Championship played at the British Embassy.

2014 Topshelf Open – Women's Doubles: Irina-Camelia Begu and Anabel Medina Garrigues were the defending champions, but chose not to participate together.  Begu played alongside Vania King, but lost in the first round to Michaëlla Krajicek and Kristina Mladenovic.  Medina Garrigues teamed up with Yaroslava Shvedova, but lost in the semifinals to Krajicek and Mladenovic. <br>

Austin Krajicek: Austin Krajicek (born June 16, 1990) is an American professional tennis player.  He is a distant cousin of Dutch tennis player Richard Krajicek, whose half-sister Michaëlla Krajicek is also a tennis player.

2009 French Open – Mixed Doubles: In the 2009 French Open – Mixed Doubles event Victoria Azarenka and Bob Bryan were the defending champions, but Azarenka chose not to participate, and only Bryan competed in the tournament. <BR>Bryan partnered with Liezel Huber and won in the final 5–7, 7–6(5), 10–7, against Vania King and Marcelo Melo.

2011 Cellular South Cup – Doubles: Vania King and Michaëlla Krajicek were the defending champions; however, they were eliminated by Olga Govortsova and Alla Kudryavtseva in the semifinals.

2010 Cellular South Cup – Singles: Victoria Azarenka was the defending champion but she chose to compete in 2010 Dubai Tennis Championships instead. Maria Sharapova won in the final 6–2, 6–1 against Sofia Arvidsson.

2010 Copa BBVA-Colsanitas – Doubles: Nuria Llagostera Vives and María José Martínez Sánchez were the defending champions; however, they chose to compete in the 2010 Dubai Tennis Championships instead.

2007 Tennis Channel Open and the Mirage Cup: The 2007 Tennis Channel Open was a tennis event on the 2007 ATP Tour.  Lleyton Hewitt, who was the 2006 runner-up, was the singles champion, while Bob and Mike Bryan were the doubles champions.  The event was held in Las Vegas, Nevada at the Darling Tennis Center.  It was the twentieth Tennis Channel Open, but just the second to be held in Las Vegas.  The ITF women's competition was won by Caroline Wozniacki in singles and by Victoria Azarenka and Tatiana Poutchek for doubles.

Supporting paragraphs: 2010 Cellular South Cup – Doubles Bethanie Mattek-Sands
Answer: Bethanie Lynn Mattek-Sands