Sascha Bajin defends Dayana Yastremska: "Some people should shut up"

Caroline Wozniacki extended her career on Wednesday after a strong performance. The Danish, who wants to end her career after the Australian Open, won 7-5, 7-5 against Dayana Yastremska. The Ukrainian noticed a questionable action, but her trainer Sascha Bajin then defended her with clear words.