Russian tennis star Maria Sharapova received a surprise marriage proposal from a fan at an exhibition game in Istanbul, Turkey, on Sunday.

The five-time Grand Slam holder, who is on tour as part of her preparations for next season, made a stop in Istanbul on Sunday to face local player Cagla Buyukakcay. Sharapova was getting ready to serve when a fan unexpectedly shouted “Maria, will you marry me?” causing laughter from those in attendance at Sinan Erdem Hall. The former world number one didn’t hesitate, answering “maybe” to the stranger who interrupted her serve with the sudden proposal.

Sharapova returned to action in April after serving a 15-month disqualification for the use of the banned drug meldonium. In October, Sharapova claimed her first trophy after returning to the WTA tour by taking a hard-fought 7-5 7-6 victory over her 19-year-old Belarusian opponent Aryna Sabalenka in the final of the Tianjin Open.