GAUFF JOINS SERENA IN US FEDERATION CUP TEAM

Coco Gauf is set to become the second youngest American tin the competition behind Jennifer Capriati, who made her debut at 14 in 1990.

The 15-year old is expected to enter the top 50 in the rankings for the first time after her run to the fourth round of the Australian Open, where she beat defending champion Naomi Osaka along the way before beaten by Sofia Kenin.