World No. 1 Jannik Sinner has made it to the quarterfinals of Wimbledon, but his passage into the last 8 has been a rollercoaster. After starting his campaign by breaking Roger Federer’s record of the fewest games conceded en route to the fourth round of the tournament, the Italian faced a tough test, which saw him trailing by two sets in his most recent match against Grigor Dimitrov.
Despite the Bulgarian leading by two sets to love, he had to retire midway through the third set after suffering a pectoral injury.
Sinner had injury concerns of his own after he suffered a fall in the early stages of that match. The Italian’s box, which consists of his coaching team, would look to actively support him as he takes on hard-serving American Ben Shelton for a berth in the semifinals.
Who’s in Jannik Sinner’s Corner at Wimbledon?
Former tennis pros Darren Cahill and Simone Vagnozzi are Sinner’s head coaches and the backbones of his team.
While Vagnozzi joined the fellow Italian’s team in February of 2022, Cahill joined in July of the same year.
Cahill, a renowned coach, is largely credited for Australian Lleyton Hewitt’s rise to the top of the ATP rankings. Over the years, he has also had coaching stints with other World No. 1s, such as Andre Agassi and Simona Halep.
Notably, the duo jointly won the “Coach of the Year” award at the 2023 ATP Awards for their work with Sinner.
Riccardo Ceccarelli, a prominent sports doctor, also seems to have become a fixture in his box at Wimbledon this year. Known for training the minds of the best F1 drivers for three decades, Ceccarelli first became associated with Sinner’s team in 2020.
👀 L’avevamo già visto nell’esordio di Sinner a Wimbledon, ma quella di Riccardo Ceccarelli sembra diventata una presenza fissa nel suo box.
Medico dello sport che da oltre 30 anni, allena la mente dei migliori piloti di F1 e dal 2020 fa parte dello staff di Jannik. pic.twitter.com/Ro7hvA572a
— Eurosport IT (@Eurosport_IT) July 3, 2025
Andrea Cipolla, an osteopath, is another crucial component of the Italian’s box, particularly following the departure of fitness trainer Marco Panichi and physiotherapist Ulises Badio.
The duo, known best for their long stints with 24-time Grand Slam champion Novak Djokovic, joined the Italian’s camp in September 2024. Sinner, however, ended the collaboration ahead of Wimbledon.
“Nothing big happened,” Sinner said, explaining his decision to part ways with the duo. “I parted ways not long ago, but it has not affected me. I feel ready to compete. I feel free. I feel, me and my team, we are ready to do the best we can.”
Team Jannik Sinner & Team Daniil Medvedev #Wimbledon pic.twitter.com/DeftanoaHS
— Jannik Sinner HQ (@HqSinner) June 26, 2025
The World No. 1’s manager, Alex Vittur, is also considered a key part of the entourage. Vittur is also in charge of his business and sponsorship affairs.
In March, Sinner left his former management group, StarWing, to begin work with AVIMA Sports & Business Management, led by Vittur.
Jannik Sinner’s Injury Scare at Wimbledon
Sinner fell in the very first game of his match against Dimitrov while sliding on the grass court, seemingly hurting his right elbow in the process.
Despite going through his Round of 16 match after Dimitrov hurt his pectoral muscle, there was speculation about whether the Italian would compete in his quarterfinal. The player’s coach, Cahill, said he recorded a considerable drop in his forehand speed while trailing in the match.
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Sinner underwent an MRI scan on Tuesday morning to assess the severity of his issue and later cancelled a scheduled practice at Aorangi Park, opting to hit indoors.
On Wednesday, July 9, Jannik Sinner resumed his practice on grass, wearing a sleeve on his right hand.
The World No. 1 leads 5-1 in his head-to-head with Shelton. The winner faces either sixth seed Novak Djokovic or 22nd seed Flavio Cobolli in the semifinals.
