Highlights of men's singles quarterfinals at Monte-Carlo Rolex Masters tennis tournament

Novak Djokovic of Serbia hits a return during the men's singles quarterfinal match against Daniil Medvedev of Russia at the Monte-Carlo Rolex Masters tennis tournament in Roquebrune Cap Martin, France, April 19, 2019. Daniil Medvedev won 2-1. (Xinhua/Nicolas Marie)