Roger Federer of Switzerland hits a return during the men's singles first round match against Dusan Lajovic of Serbia at the Championship Wimbledon 2018 in London, Britain, on July 2, 2018. Roger Federer won 3-0. (Xinhua/Tang Shi)
Roger Federer of Switzerland hits a return during the men's singles first round match against Dusan Lajovic of Serbia at the Championship Wimbledon 2018 in London, Britain, on July 2, 2018. Roger Federer won 3-0. (Xinhua/Tang Shi)
Roger Federer of Switzerland celebrates after winning the men's singles first round match against Dusan Lajovic of Serbia at the Championship Wimbledon 2018 in London, Britain, on July 2, 2018. Roger Federer won 3-0. (Xinhua/Tang Shi)
Roger Federer of Switzerland hits a return during the men's singles first round match against Dusan Lajovic of Serbia at the Championship Wimbledon 2018 in London, Britain, on July 2, 2018. Roger Federer won 3-0. (Xinhua/Tang Shi)
Roger Federer of Switzerland greets spectators after winning the men's singles first round match against Dusan Lajovic of Serbia at the Championship Wimbledon 2018 in London, Britain, on July 2, 2018. Roger Federer won 3-0. (Xinhua/Tang Shi)
Dusan Lajovic of Serbia hits a return during the men's singles first round match against Roger Federer of Switzerland at the Championship Wimbledon 2018 in London, Britain, on July 2, 2018. Dusan Lajovic lost 0-3. (Xinhua/Tang Shi)