Colton Smith
Tennis Tracker: Mboko claims title in Montreal, Shelton downs Khachanov to win in Toronto
ATP roundup: Paul moves on in Houston, Griekspoor and Baez also advance in Morocco and Romania
Tennis Tracker: Qinwen Zheng defeats Maria Sakkari, Tommy Paul edges Cristian Garin
Naomi Osaka falls at first hurdle at Indian Wells, Petra Kvitova also out