Tsitsipas has been coached by his father and his mother, Julia, throughout significant parts of his life and his career.
However, the 26-year-old sensationally split from Apostolos in August 2024, after a tense mid-match exchange during his Canadian Open defeat to Kei Nishikori.
Tsitsipas has largely been coached by Greek Davis Cup captain Dimitris Chatzinikolaou since then, though he announced in May that he would begin working with former world No 2 Goran Ivanisevic.
Speaking on The Changeover Podcast, Tsitsipas revealed that his relationship with his father had left him feeling “the toxicity of it all”, though that the pair’s dynamic had improved after their split.
“It reached a point before where tennis got too much in the way,” said Tsitsipas.
“And, as bad as it sounds, I think it became even toxic in a way because I felt like he was constantly hunting.
“It reached the point where he was hunting more than me and that’s where the pressure kicks in. That’s where I feel the toxicity of it all.
“Our relationship has actually gotten better over the last couple of months. It was very hard and difficult in the beginning when we split.
“It was very hard for him to accept that he’s not part of my inner circle anymore. He’s still my father and he’s still someone that remains dear and close to me.”
Tsitsipas will now start working with 2001 Wimbledon champion Ivanisevic, who had huge success with Novak Djokovic across a six-year spell.
Once ranked as high as world No. 3, Tsitsipas has fallen to world No. 26 in the ATP Rankings after his second-round exit at the French Open, losing to qualifier Matteo Gigante.
It is the first time that the Greek has been out of the top 20 since 2018, and the 26-year-old will be targeting a significant rankings surge under Ivanisevic’s guidance.
However, the former Australian and French Open runner-up has admitted that he and Ivanisevic will need time to make significant progress.
“I am not expecting this to be suddenly something that starts giving me titles from week one or week two,” he said.
“I’m focusing more on the long process of it, the whole journey of working with him and my whole goal with that is to try and see improvements.
“I feel like that’s a part of an identity in a coach that is important,to not only coach me on how I can hit better forehands and backhands, but also coach me in in the way I should probably be thinking.
“And, the way he has faced situations in his own personal career and maybe pass on those tough experiences, those adversity moments and teach me through his own experiences.”