WASHINGTON, DC - JULY 18: Samantha Stosur of Australia returns a shot to Alla Kudryavtseva of Russia during day 1 of the Citi Open at Rock Creek Tennis Center on July 18, 2016 in Washington, DC. (Photo by Matthew Hazlett/Getty Images)
WASHINGTON, DC - JULY 18: Samantha Stosur of Australia returns a shot to Alla Kudryavtseva of Russia during day 1 of the Citi Open at Rock Creek Tennis Center on July 18, 2016 in Washington, DC. (Photo by Matthew Hazlett/Getty Images)
WASHINGTON, DC - JULY 18: Samantha Stosur of Australia returns a shot to Alla Kudryavtseva of Russia during day 1 of the Citi Open at Rock Creek Tennis Center on July 18, 2016 in Washington, DC. (Photo by Matthew Hazlett/Getty Images)
WASHINGTON, DC - JULY 18: Samantha Stosur of Australia returns a shot to Alla Kudryavtseva of Russia during day 1 of the Citi Open at Rock Creek Tennis Center on July 18, 2016 in Washington, DC. (Photo by Matthew Hazlett/Getty Images)
