Mark Philippoussis announced on Instagram Tuesday that he is no longer working with Stefanos Tsitsipas.

“@stefanostsitsipas98 thank for the opportunity of being a part of your team,” Philippoussis wrote. “It was a great ride and experience, I’m proud of what we achieved together in the short amount of time we had. I wish you health, happiness and success for your future, on and off the court! 🙏🏼💙”

One of the brightest moments of the Philippoussis-Tsitsipas partnership came at this year’s Australian Open, where the Greek advanced to his second major final.

Ahead of this year’s BNP Paribas Open, Tsitsipas said of Philippoussis “Mark is a very wise man, he has a lot of knowledge.

“I think the fact that he’s lived these things himself on the tour and he’s able to provide some [advice] to me now is essential. He provides a lot of feedback. He can relate to a lot of things that have happened to me and sees a little bit of himself in me in some circumstances and situations.”

Tsitsipas is still coached by his father, Apostolos Tsitsipas. The Greek will enter Roland Garros as the fifth seed.