Highlights of 2019 Wimbledon Tennis Championships day 7

(190709) -- LONDON, July 9, 2019 (Xinhua) -- Karolina Pliskova returns the ball during the women's singles fourth round match between Karolina Pliskova of the Czech Republic and her compatriot Karolina Muchova at the 2019 Wimbledon Tennis Championships in London, Britain, July 8, 2019. (Xinhua/Lu Yang)