With wins over Ann Li and Anna Kalinskaya, Coco Gauff and Madison Keys advanced to the Round of 16 -- and four more U.S. players are still in the hunt.

No.40 Anna Kalinskaya earned her first Top 5 win after defeating No.3 Coco Gauff in three sets to make the semifinals at the Dubai Duty Free Tennis Championships. Why not watch this next… ...