Highlights of 2019 Wimbledon Tennis Championships day 7

(190709) -- LONDON, July 9, 2019 (Xinhua) -- Roger Federer returns the ball during the men's singles fourth round match between Roger Federer of Switzerland and Matteo Berrettini of Italy at the 2019 Wimbledon Tennis Championships in London, Britain, on July 8, 2019. (Xinhua/Han Yan)