![German tennis player Benjamin Hassan wears face mask during Tennis Exhibition Series | Daily Mail Online German tennis player Benjamin Hassan wears face mask during Tennis Exhibition Series | Daily Mail Online](https://i.dailymail.co.uk/1s/2020/05/02/20/27930794-8281027-image-a-87_1588448325824.jpg)
German tennis player Benjamin Hassan wears face mask during Tennis Exhibition Series | Daily Mail Online
![Benjamin Hassan, a German ATP player wears a face mask as he warms up for an exhibition tennis match played without spectators and broadcasted by remote controlled cameras, during the spread of Benjamin Hassan, a German ATP player wears a face mask as he warms up for an exhibition tennis match played without spectators and broadcasted by remote controlled cameras, during the spread of](https://c8.alamy.com/comp/2CNPCMK/benjamin-hassan-a-german-atp-player-wears-a-face-mask-as-he-warms-up-for-an-exhibition-tennis-match-played-without-spectators-and-broadcasted-by-remote-controlled-cameras-during-the-spread-of-the-coronavirus-disease-covid-19-in-a-tennis-academy-in-hoehr-grenzhausen-near-koblenz-germany-may-2-2020-reuterswolfgang-rattay-2CNPCMK.jpg)
Benjamin Hassan, a German ATP player wears a face mask as he warms up for an exhibition tennis match played without spectators and broadcasted by remote controlled cameras, during the spread of
![José Morgado on Twitter: "Benjamin Hassan is playing the event with a mask. Gotta be tough. [getty] https://t.co/cCy7hhejwb" / Twitter José Morgado on Twitter: "Benjamin Hassan is playing the event with a mask. Gotta be tough. [getty] https://t.co/cCy7hhejwb" / Twitter](https://pbs.twimg.com/media/EXDCILEWAAE6Quq.jpg)