As the 2025 ATP season draws to a close, several players look to shake up their coaching teams.
The world number one may be about to lose his head coach, Darren Cahill, if he does indeed choose to step down at the end of the year.
Sinner and Cahill have formed a formidable partnership over recent years, winning four Grand Slam titles together across 2024 and 2025.
However, Sinner isn’t the only Italian player set to move on from their coach, as one of his teammates has just shared a big announcement ahead of the 2026 season…
Lorenzo Sonego splits with Fabio Colangelo
Taking to Instagram, 2025 Australian Open quarterfinalist Lorenzo Sonego announced his split with coach Fabio Colangelo.
“Thank you, Fabio [Colangelo], for the dedication and passion you put into every day of working together,” said Sonego.
“The quarter-final result in Australia will remain an important milestone and a memory I will carry in my heart forever, but what mattered most is having you by my side at a particularly significant moment in my career.
“Your presence, calmness, and confidence you have instilled in me helped me grow as a person and as an athlete.
“Thank you.”
Sonego and Colangelo began working together in 2024 and quickly found success at the beginning of the new year.
At the 2025 Australian Open, Sonego qualified for his maiden Grand Slam quarterfinal, following wins over Stan Wawrinka, Joao Fonseca, Fabian Marozsan, and Learner Tien.
Competing in his first career major quarterfinal, Sonego took on America’s Ben Shelton.
The match was competitive, but Sonego lost to Shelton in four sets, as his remarkable run came to an end at the quarterfinal stage.
He didn’t return to the last eight in 2025, but enjoyed a strong Grand Slam campaign under the guidance of Colangelo.
Lorenzo Sonego’s Grand Slam record (Bold with Colangelo)
| Grand Slam | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
| Australian Open | 2R | Q3 | 1R | 2R | 3R | 2R | 2R | QF |
| French Open | Q2 | 1R | 4R | 1R | 3R | 4R | 2R | 1R |
| Wimbledon | 1R | 1R | – | 4R | 3R | 1R | 2R | 4R |
| US Open | 2R | 2R | 1R | 1R | 1R | 2R | 1R | 1R |
Having enjoyed as much success as he did with Colangelo, it may seem surprising to see Sonego move on from his coach.
But how did the Italian get on during the latter stages of his 2025 campaign?
Lorenzo Sonego picked up his first top 10 win since 2023 weeks before Fabio Colangelo split
The 30-year-old found some form in Europe at the end of the year, winning seven of his last 11 matches.
- 2025 Stockholm Open 1R [WIN] vs Arthur Fery
- 2025 Stockholm Open 2R [WIN] vs Aleksandar Kovacevic
- 2025 Stockholm Open QF [LOSS] vs Ugo Humbert
- 2025 Swiss Indoors 1R [LOSS] vs Alejandro Davidovich Fokina
- 2025 Paris Masters 1R [WIN] vs Sebastian Korda
- 2025 Paris Masters 2R [WIN] vs Lorenzo Musetti
- 2025 Paris Masters 3R [LOSS] vs Daniil Medvedev
- 2025 Moselle Open 1R [WIN] vs Jan Choinski
- 2025 Moselle Open 2R [WIN] vs Flavio Cobolli
- 2025 Moselle Open QF [WIN] vs Daniel Altmaier
- 2025 Moselle Open SF [LOSS] vs Cameron Norrie
Beating Lorenzo Musetti at the Paris Masters, Sonego ended his 880-day wait for a top-10 win.
Sonego’s strong end-of-season form saw him finish the year ranked inside the top 40 for the first time since 2021.
Lorenzo Sonego’s year-end rankings (Top 100)
| Year | Year-end ranking | ATP titles | Best Grand Slam result |
| 2025 | 39 | 0 | QF – Australian Open |
| 2024 | 53 | 1 | 2R – Australian Open, French Open, Wimbledon |
| 2023 | 46 | 0 | 4R – French Open |
| 2022 | 45 | 1 | 3R – Australian Open, French Open, Wimbledon |
| 2021 | 27 | 1 | 4R – Wimbledon |
| 2020 | 33 | 0 | 4R – French Open |
| 2019 | 52 | 1 | 2R – US Open |
Whoever Sonego decides to bring in next, they’ll certainly have a strong platform to build upon in 2026.
Sonego is likely to return to tennis ahead of the Australian Open, which begins on Monday, January 12.
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