San Diego Open: Trevisan into second round

Italian Martina Trevisan beat Colombian qualifier Camila Osorio 6-3, 6-4 to advance to the second round of the San Diego Open at the Barnes Tennis Centre on Monday evening.

Trevisan, ranked No 31, will play the winner of the match between Frenchwoman Caroline Garcia, the No 7 seed, and American Danielle Collins next.

San Diego WTA 500, other first-round results (Barnes Tennis Centre, hard, USD 757.900, most recent results first):

• Madison Keys beat Ellen Perez (Q): 6-1, 6-4
• Robin Montgomery vs. Coco Gauff
• Elena Rybakina vs. Garbine Muguruza
• Leylah Fernandez vs. Daria Kasatkina
• Veronika Kudermetova vs. Sloane Stephens
• Karolina Pliskova vs. Caroline Dolehide
• Maria Sakkari vs. Donna Vekic
• Bianca Andreescu vs. Liudmila Samsonova
• Caroline Garcia vs. Danielle Collins
• Coco Vandeweghe vs. Sofia Kenin
• Louisa Chirico vs. Alison Riske-Amritraj: monday