With the brief off-season in professional tennis leaving little time to rest, a discreet but intense competition is underway among top players vying for a limited number of elite coaches ahead of the 2027 season. Among the storylines gaining traction is Jannik Sinner’s possible coaching change, with speculation mounting that he may replace Darren Cahill with Juan Carlos Ferrero, the former coach of his rival Carlos Alcaraz.

Cahill, who guided Sinner to five Grand Slam singles titles and currently serves as the world No. 1’s coach alongside Simone Vagnozzi, had initially planned to retire at the end of 2025. However, he was convinced to extend his tenure by another year. Meanwhile, Ferrero, aged 46, has confirmed plans to return to the ATP Tour in 2027 but has not revealed which player he might work with.

Adding further intrigue is Magnus Norman, the long-time coach of the retiring Stan Wawrinka. Norman, 50, who led Wawrinka to three Grand Slam titles, had previously been considered by Sinner during a coaching split in 2022. Norman has reportedly received multiple offers from top-10 players, including Denmark’s Holger Rune, but has yet to commit to a new partnership. Both Sinner and Cahill reportedly hold Norman in high regard, fueling speculation that a collaboration could materialize next year.

While Sinner’s situation remains uncertain, another coaching decision has been finalized. Felix Auger Aliassime, the Canadian world No. 5, is expected to announce his new partnership with Ivan Ljubicic imminently. Ljubicic, a former world No. 3, coached Roger Federer for six years before transitioning into roles within the French Tennis Federation. Since stepping down to a special adviser position earlier this year, Ljubicic is now available to return to full-time coaching. Auger Aliassime ended his decade-long relationship with Frédéric Fontang in July after a difficult season marked by a notable dip in form.

British player Jack Draper, who has not competed this season due to a chronic elbow injury forcing him to miss all four Grand Slam tournaments, continues to search for a full-time coach. His ranking has fallen sharply, from No. 4 to No. 157. Sir Andy Murray has expressed willingness to remain part of Draper’s team in 2027 but plans to limit travel to about ten weeks a year. Alexandre Lisiecki, a national coach with the Lawn Tennis Association, assisted Draper in recent tournaments but is unlikely to take on the full-time role. The shortage of British coaches prepared for extensive travel means Draper’s team may need to look internationally to fill the position.

Meanwhile, the details surrounding who will join Ferrero on his comeback remain unclear. Following his split with Alcaraz, the latter confirmed there will be no reunion. Rising Spanish talent Rafa Jodar, 20, is reportedly assembling a team for 2027, but there are doubts whether his father—who currently acts as his coach, physio, and manager—will allow significant outside influence. João Fonseca, a promising 20-year-old Brazilian player, has also been mentioned as a possible candidate to work with Ferrero, who has spent the last year working as a mental coach for Spanish golfer Angel Ayora.

Sinner, who has been sidelined since winning Wimbledon in July due to a knee injury, has yet to publicly comment on the coaching rumors. With no official decision announced, the offseason’s covert jockeying for premier coaching talent continues to unfold as players seek to gain an edge heading into the 2027 season.