Alexander Zverev advances into quarterfinals at BMW Open 2019

Germany's Alexander Zverev serves during a men's singles second round match of BMW Open 2019 between Germany's Alexander Zverev and Argentina's Juan Ignacio Londero in Munich, Germany, on May 1, 2019. Alexander Zverev won 2-0 and advanced into the quarterfinals. (Xinhua/Philippe Ruiz)