Gauff's serve struggles have reemerged of late after a period of improvement with coach Matt Daly, who is now off her team.

Coco Gauff has made a change to her coaching staff just before the US Open, parting ways with her coach Matt Daly and adding biomechanics expert Gavin MacMillan to her team. The two-time Grand Slam ...

(Reuters) -Two-times Grand Slam champion Coco Gauff has parted ways with coach Matthew Daly just days before the start of the ...