MADRID, SPAIN - MAY 01: Angelique Kerber of Germany plays a backhand shot during the Women's Single's Round of 32 match between Petra Kvitova and Angelique Kerber on Day Three of the Mutua Madrid Open at La Caja Magica on May 01, 2021 in Madrid, Spain. Sporting venues around Spain remain under strict restrictions due to the Coronavirus Pandemic as Government social distancing laws prohibit fans inside venues resulting in games being played behind closed doors. (Photo by Clive Brunskill/Getty Images)
