Continued the first round of the US Open WTA in the night from Monday to Tuesday and the favorites have not disappointed. Serena Williams has mastered Maria Sharapova in less than an hour (6-1 / 6-1) in the clash of former world number one. The American has now won 20 of her 22 games against Russia. World No. 9 Madison Keys defeated Misaki Doi (7-5 / 6-0) in one hour and six minutes. Another seed got his ticket for the next round in the person of Elina Svitolina who beat Whitney Osuigwe (6-1 / 7-5). She will face sister Williams, Venus, in the 1/32 round of finals. In the other meetings, Caroline Dolehide lost to Qiang Wang (6-4 / 6-4) while American Sofia Kenin eliminated her compatriot Coco Vandeweghe (7-6 / 6-3).