"It will happen sooner than later" - Serena Williams' ex-coach predicts Iga Swiatek will surpass Aryna Sabalenka, Coco Gauff to become year-end No. 1

Serena Williams' ex-coach, Rick Macci, believed that Iga Swiatek would eclipse Aryna Sabalenka and Coco Gauff to be No.1 in no time and would end the year as the top player again.