One of the rising stars of the women's tour is facing allegations of poor sportsmanship.
Dayana Yastremska powered past 13th seed Johanna Konta to reach the second round in Toronto.
The 18-year-old is alleged to have deliberate faked an injury to disrupt the momentum of her opponent.
Both women overcame some stern resistance from their opponents to win their first title of 2019.
Belinda Bencic continued her impressive return to form by reaching the semi-finals in Luxembourg with a straight-sets win over Vera Lapko.