Benjamin Hassan Pictures
HOHR-GRENZHAUSEN, GERMANY - MAY 02: Benjamin Hassan of Germany wears a face mask as he warms up during day 2 of the Tennis Point Exhibition Series on May 02, 2020 in Hohr-Grenzhausen, Germany. The tournament is the first since the suspension of all matches at the beginning of March and one of the first non-virtual sporting events held during the Coronavirus crisis. (Photo by Alex Grimm/Getty Images)