STUTTGART, GERMANY - APRIL 26: Angelique Kerber of Germany controls the ball during day 5 of the Porsche Tennis Grand Prix at Porsche-Arena on April 26, 2019 in Stuttgart, Germany. (Photo by TF-Images/Getty Images)
STUTTGART, GERMANY - APRIL 26: Angelique Kerber of Germany controls the ball during day 5 of the Porsche Tennis Grand Prix at Porsche-Arena on April 26, 2019 in Stuttgart, Germany. (Photo by TF-Images/Getty Images)