Milos Raonic
The Canadian, who has been plagued by injury problems in recent years, changed coaches four times in an attempt to recapture the glory days of his early career: Jonas Björkman, John McEnroe, Goran Ivanisevic, and Fabrice Santoro. However, persistent injury problems continued to elude him.
Dominic Thiem
Like Raonic, the Austrian also struggled with injuries and opted for a change of coaches to give his career a new boost: Günter Bresnik, Nicolas Massu, and Benjamin Ebrahimzadeh. Under Massu, he won his Grand Slam title, and under Ebrahimzadeh, he worked his way back to world-class level after his serious injury.
Stefanos Tsitsipas
The top Greek player has already changed coaches four times in recent months: After years of trying with his father, he switched to Dimitris Chatzinikolaou. After failing to achieve top results, he returned to his father and then to former Wimbledon champion Goran Ivanisevic. Ivanisevic recently accused him of a lack of training ethic. Whether he will succeed in leading Tsitsipas back to the absolute world elite remains to be seen.
Denis Shapovalov
The Canadian, who has been searching for his old top form for some time, has already changed coaches six times: He started with his mother Tessa, switched to Martin Laurendeau, Rob Steckley, Adriano Fuorivia, Mikhail Youzhny, Jamie Delgado, Peter Polansky, and finally to his current coach Janko Tipsarevic.
Alexander Zverev
Zverev frequently changed coaches, especially early in his career. After initially working with his parents as his coach, he switched to Juan Carlos Ferrero, who accused him of a lack of discipline. After Ivan Lendl, he switched to David Ferrer, only to then bring his father back on board as his coach. His brother Mischa is now also on the team.
Grigor Dimitrov
Like Shapovalov, the talented Bulgarian has changed coaches six times. First, he relied on his father, then switched to the now-deceased Peter Lundgren, followed by Peter McNamara, Patrick Mouratoglou, Roger Rasheed, Franco Davín, Dani Vallverdú, Dante Bottini, and then a return to Vallverdú.
Holger Rune
The talented Dane has changed coaches most frequently in his still-young career. After his youth coach Lars Christensen, he relied on Patrick Mouratoglou, Boris Becker, Severin Lüthi, and his mother, before returning to his youth coach again.
