In pics: Highlights of 2018 Rogers Cup

Maria Sharapova of Russia hits a return during the first round of women's singles match against Sesil Karatantcheva of Bulgaria at the 2018 Rogers Cup in Montreal, Canada, Aug. 7, 2018. Maria Sharapova won 2-0. (Xinhua/Andrew Soong)

Sesil Karatantcheva of Bulgaria hits a return during the first round of women's singles match against Maria Sharapova of Russia at the 2018 Rogers Cup in Montreal, Canada, Aug. 7, 2018. Maria Sharapova won 2-0. (Xinhua/Andrew Soong)

Novak Djokovic of Serbia celebrates victory after the first round of men's singles match against Mirza Basic of Bosnia and Herzegovina at the 2018 Rogers Cup in Toronto, Canada, Aug. 7, 2018. Novak Djokovic won 2-0. (Xinhua/Zou Zheng)

Mahaela Buzarnescu of Romania returns a shot to Wang Qiang of China during their women's singles first round match at the 2018 Rogers Cup in Montreal, Canada, on Aug. 7, 2018. Mahaela Buzarnescu won 2-0. (Xinhua/Andrew Soong)