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

Dusan Lajovic of Serbia hits a return during the men's singles quarterfinal match against Lorenzo Sonego of Italy at the Monte-Carlo Rolex Masters tennis tournament in Roquebrune Cap Martin, France, April 19, 2019. Dusan Lajovic won 2-0. (Xinhua/Nicolas Marie)