Bianca Andreescu announces split from longtime coach Sylvain Bruneau

WATCH: Andreescu bowed out in the first round of Roland Garros to Tamara Zidansek after serving for the match.

A week after falling in the first round of Roland Garros, Bianca Andreescu announced on social media Tuesday that she has split with longtime coach Sylvain Bruneau. She is yet to announce a new coach.

The two had worked together for four years—essentially her entire pro career—and Bruneau has been seen as a stabilizing force throughout the highs and lows.

“Our friendship will live forever,” writes the 2019 US Open champion. “I am very grateful for everything we accomplished together and all of our great memories.

“Sylvain was more than a coach…he is family.”

Andreescu returned to action at the start of the 2021 season, having missed the last 15 months due to knee and foot injuries, and showed the form that took her to No. 4 in the WTA rankings when she reached the Miami Open final.

A positive COVID-19 test subsequently ruled her out of both Madrid and Rome, and an abdominal injury ended her Strasbourg campaign in the quarterfinals.

The 20-year-old Canadian served for the match against Tamara Zidansek, ultimately bowing out, 7-6 (1), 6-7 (2), 9-7, to the on-fire Slovenian.

Barring further physical issues, Andreescu is set to play her first full grass-court season, having missed it in 2019 due to a shoulder injury.