<prompt> Kerber akatanga mwaka wa2019 nekuratidzira kwake kwechipiri paHopman Cup  <response>: , pamwe chete naAlexander Zverev zvakare; vakarasikirwa mumutambo wekupedzisira kuSwitzerland mumutambo wekupedzisira wegore rapera. MuSydney, Kerber akakundikana mukudzivirira zita rake nekurasikirwa nemukundi wekupedzisira Petra Kvitová mumakwikwi ekupedzisira. PaAustralia Open, Kerber akapinda mu16 yekupedzisira aine kukunda kwakatwasuka pamusoro pevakadai saPolona Hercog, Beatriz Haddad Maia achikunda mutambo wake we100 Grand Slam naKimberly Birrell, chete kuti agumburwe neanopedzisira ave semifinalist Danielle Collins mumaseti akatwasuka. Mwedzi wakatevera, Kerber akaita semifinals paQatar Open kwaakarasikirwa nemukundi wekupedzisira Elise Mertens. KuDubai Tennis Championships, Kerber akarasikirwa mumutambo wechitatu kune akazoita semi-finalist Hsieh Su-wei mumaseti matatu. 