A general view of the Gerry-Weber-Stadium during the ATP tournament tennis match in Halle, western Germany, on June 22, 2017. / AFP PHOTO / CARMEN JASPERSEN (Photo credit should read CARMEN JASPERSEN/AFP via Getty Images)
A general view of the Gerry-Weber-Stadium during the ATP tournament tennis match in Halle, western Germany, on June 22, 2017. / AFP PHOTO / CARMEN JASPERSEN (Photo credit should read CARMEN JASPERSEN/AFP via Getty Images)