The quarterfinal match between Karen Khachanov and Sebastian Korda at the Australian Open on Tuesday was extremely close throughout the whole set. Up until Khachanov exploded with a down-the-line backhand to en...
Coaching one of the brightest young players in the men's game can present particular difficulties, but Radek Stepanek's relationship with Sebastian Korda has benefited from their shared "tennis DNA" as a result...