MELBOURNE, Australia (AP) — It was a meaningless hit-and-giggle session, a mixed doubles exhibition at Rod Laver Arena just ...

It was a meaningless hit-and-giggle session, so Coco Gauff was calling out how fast she would try to hit some serves.

Hall of Famer Lleyton Hewitt, acknowledged, “Great serving.” Gauff’s response? “Thanks. I’ve been working on it.” Yes, she has — on her serving and her forehand — and the strides ...

Hall of Famer Lleyton Hewitt, acknowledged, “Great serving.” Gauff's response? “Thanks. I've been working on it.” Recommended Videos Yes, she has — on her serving and her forehand ...