Wins for Monfils and Tiafoe in Cincinnati

Former top-ten ranked Gael Monfils of France beat Dusan Lajovic of Serbia in straight sets to book his place in the second round of the Western and Southern Open in Cincinnati on Tuesday.

Monfils won 7-6 (0), 6-2 and keeps his hundred per cent record against the Serbian in head-to-head meetings. In another match, American Frances Tiafor fought hard to overcome Frenchman Ugo Humbert to advance.

Tiafoe won 7-5, 7-6 (9) and will now play Argentina's Diego Schwartzman while Monfils will clash against Australian Alex de Minaur.