#Kerber #tennis Angelique Kerber, from Germany, returns the ball to Karolina Pliskova, from Czech Republic, during the championship match in the Bank of the West Classic tennis tournament in Stanford, Calif., Sunday, Aug. 9, 2015. Kerber won 6-3, 5-7, 6-4. (AP Photo/Jeff Chiu)
Serena Williams celebrates her seventh Wimbledon title on Saturday, July 9. The American defeated Germany's Angelique Kerber <a href="http://edition.cnn.com/2016/07/09/tennis/wimbledon-serena-williams-angelique-kerber-tennis/" target="_blank">for her 22nd Grand Slam </a>-- tying Steffi Graf for the most in the Open era.