Bethanie Lynn Mattek-Sands (née Mattek; born March 23, 1985) is an American professional tennis player who competes on the WTA Tour. She lives in Miami, Florida, but trains in Phoenix, Arizona. Mattek has won five singles and three doubles titles on the ITF Circuit, and her best results on the WTA Tour to date are reaching the semifinals of the tournaments in Cincinnati, Ohio, in 2005 and Birmingham, United Kingdom, in 2008 and the finals of the Bell Challenge in 2008 and 2010. In doubles, she has won fifteen WTA Tour titles most notably the 2015 Australian Open and French Open 2015. Mattek also plays for the New York Sportimes for World Team Tennis.