Bjorn Borg has sparked confusion and mild controversy with a comment regarding Jannik Sinner’s doping case, in which the Italian tennis star tested positive twice for the banned substance clostebol. The tests occurred within a short span of days and were part of standard anti-doping protocol. Borg’s reaction, however, suggested he may not have fully understood the timeline or procedures involved.
“I think I was very surprised when I read that. I think it happened twice. I mean if it happened one time…but it happened twice, I think. So, I think that’s very strange,” Borg said in a recent interview.
Sinner’s case was procedural, not exceptional
Sinner’s two positive tests were not separate incidents but part of a continuous investigation. The ITIA confirmed that both samples were taken during the same suspension window and reflected the same presence of clostebol. Experts in the field noted that multiple positives in close succession are common when a substance remains in the system.
“It’s not unusual to test positive more than once if the substance is still present. That doesn’t mean there were multiple violations,” said one anti-doping official.
Sinner was eventually cleared of intentional wrongdoing after evidence showed the substance entered his body through a contaminated massage product used by a member of his team.
Borg’s comment draws mixed reactions
While Borg’s legacy in tennis remains undisputed, his remarks on Sinner’s case were seen by many as uninformed. The Swedish legend also questioned Sinner’s decision to rehire his former fitness coach Umberto Ferrara, who had been dismissed during the investigation.
“He fired one of his trainers, his fitness coach. And then, once everything calmed down, he rehired the same fitness coach. I find that very strange. I don’t know more,”
Borg added.The comment has led to speculation that Borg may not have followed the full details of the case, which were publicly clarified by both Sinner and the ITIA.
Sinner moves forward, focused on competition
Despite the lingering attention, Sinner has returned to the court with strong performances, including titles at the Cincinnati Open and the US Open. He has maintained that the episode was unfortunate but resolved, and has expressed confidence in his team and his future.
“I will now put this challenging and deeply unfortunate period behind me. I will continue to do everything I can to comply with the anti-doping programme,” Sinner said in his official statement.
As the tennis world turns its focus back to competition, Borg’s comment serves as a reminder of how easily misinformation can cloud public perception—even among legends of the sport.
Jannik Sinner in 2025
Currently the world no.2, Jannik played his last encounter on the 7th of September when he was defeated by world no.1 Carlos Alcaraz 6-2 3-6 6-1 6-4 in the final of the U.S. Open (draw).
Currently, during this year Sinner has managed to achieve a 37-5 win-loss record. Jannik clinched 2 titles in 2025 at the Australian Open and Wimbledon. Jannik was the finalist in Rome, French Open, Cincinnati and U.S. Open.
He is also scheduled to play in Shanghai (Shanghai Rolex Masters) after Beijing. The main draw will start on the 25th of September.