London - Russian 29th seed Daria Kasatkina was the first winner at this year's Wimbledon on Monday when she defeated American Victoria Duval 6-0, 7-5.
Duval, the world number 572, skipped Wimbledon last year as she recovered from cancer surgery.
Kasatkina goes on to face either Olga Govortsova of Belarus or Spain's Lara Arruabarrena for a place in the third round.