Darren Cahill, who is the coach of ATP world number one Jannik Sinner, has weighed in on Gauff’s hiring of MacMillan. Darren Cahill, the current coach of Jannik Sinner, is understandably an authority ...

Coco Gauff has fired a member of her coaching staff, Matt Daly, days ahead of the start of the US Open. She's replaced him with Gavin MacMillan, a biomechanics specialist who's credited with having ...

Coco Gauff has not made a formal announcement, but a source confirmed to ESPN on Wednesday that the world No. 3 player has ...