Facundo Bagnis #

Introduction #

Facundo Bagnis is an Argentine professional tennis player, born on 27 February 1990 in Rosario, Santa Fe, who turned professional in 2007 and reached a career-high ATP singles ranking of world No. 55 in November 2016. On 13 July 2026, the International Tennis Integrity Agency (ITIA) announced that Bagnis had accepted a 12-month suspension under tennis’ anti-doping rules after testing positive for hydrochlorothiazide during qualifying for the US Open in August 2025. Unusually for a case of this kind, the ITIA itself accepted that the violation was not intentional and that the banned substance came from a contaminated supplement.

Background Information #

Bagnis was born in Rosario in Argentina’s Santa Fe province, resides in the nearby town of Armstrong, plays left-handed with a two-handed backhand, and has been coached by Antonio Pastorino. He competed mainly on the ATP Challenger Tour, where he won 17 singles titles, and he also won one ATP doubles title, at Stuttgart in 2013. His career highlights include a Grand Slam debut win over Julien Benneteau at the 2014 French Open, sealed 18–16 in the deciding set, a gold medal in men’s singles at the 2015 Pan American Games in Toronto, a first ATP final at the 2021 Chile Open, a third-round run at the 2021 US Open, and a second ATP final at the 2024 Córdoba Open, which at age 33 made him the oldest player from South America to reach an ATP event final in the Open Era.

The Controversy or Incident That Led to Their Cancellation #

Adjudicated. The 12-month suspension is an adjudicated anti-doping outcome accepted by Bagnis under the International Tennis Integrity Agency rules — he waived a tribunal hearing, and the ITIA itself accepted the violation was unintentional and caused by a contaminated supplement. It is a sporting sanction, not a criminal matter.

Per the ITIA, 36-year-old Bagnis tested positive for hydrochlorothiazide, a diuretic and masking agent on the World Anti-Doping Agency prohibited list, “during qualifying for the US Open in August 2025.” He received notification of the positive test on 2 October 2025, per Tennis Tonic. While a provisional suspension is not mandatory for this substance, Bagnis elected to enter a voluntary provisional suspension on 18 October 2025 while an investigation took place.

In November 2025, Bagnis informed the ITIA that he had identified a contaminated supplement as the source of the substance found in his sample, providing detailed records and documentation including copies of communication with his doctor, receipts of purchase, and independent expert reports. On medical grounds, his doctor had prescribed a bespoke supplement and recommended a pharmacy for its production, giving assurances of its safety and use by other professional athletes. Bagnis said he “trusted the professional, with whom I had worked for years, and the pharmacy he suggested, believing the supplement was reliable and safe” His lawyer, Pedro Fida, and a toxicologist uncovered the contamination, and the French toxicology specialist Dr. Pascal Kintz conducted hair and nail studies confirming no trace of hydrochlorothiazide in the six months prior to the test. Remaining capsules analyzed by a WADA-accredited laboratory verified the contamination, and Bagnis also submitted audio recordings, prescriptions, and receipts.

In early 2026, the ITIA tested the product at an independent, World Anti-Doping Agency-accredited laboratory, which both confirmed the presence of the substance and found that Bagnis’ explanation was possible. The ITIA accepted that, in the circumstances, the violation was not intentional, and in determining sanction it considered the mitigating factors demonstrated by Bagnis and precedent from similar cases. A 12-month suspension was offered to the player, who accepted and waived his right to a hearing before an independent tribunal; as time served under provisional suspension is credited, the suspension ends on 17 October 2026.

Public Reaction and Consequences #

Bagnis addressed the case publicly once it was resolved. “At the end of that process, and with much regret, I accepted the proposal of a 12-month suspension, with ITIA recognizing that the violation was not intentional,” he said, in comments carried by Tennis Tonic under the headline “The violation was not intentional”. The terms of the suspension are broad: while suspended, Bagnis is not allowed to play in, coach at, or attend any events organised or sanctioned by World Tennis, WTA, ATP, the Grand Slams, or any national association. Because he had already stopped playing, the practical effect was to freeze him out of every level of the professional game for a full year, including the Challenger circuit that had been his competitive home for most of his career.

Current Status #

Bagnis is serving the 12-month suspension, which began with his voluntary provisional suspension on 18 October 2025 and runs until 17 October 2026. Per Tennis Tonic, he confirmed his return to competition on 19 October 2026, the day after the ban expires. His last match before the suspension was a 6–3, 3–6, 6–2 win over Francesco Maestrelli in the first round of the Antofagasta Challenger on 29 September 2025, and he was ranked No. 431 at the time the suspension was announced. He remains determined to continue, saying “I choose to stay connected to sport, transforming this negative experience into strength for the future”

Impact on Their Career/Life #

The suspension arrived at the far end of a long career built on the Challenger tour, sidelining Bagnis for what would have been his age-36 season and leaving him unable to compete, coach, or even attend sanctioned events until mid-October 2026. The case stands out among tennis doping sanctions for its outcome rather than its severity: the ITIA not only credited his voluntary provisional suspension and cooperation but formally accepted that the violation was unintentional, the product of a contaminated vitamin supplement prescribed on medical grounds. That finding, backed by the Kintz hair and nail studies and laboratory testing of the remaining capsules, preserved his reputation in a way a contested tribunal process might not have. Whether he can rebuild his ranking from outside the top 400 upon his return in October 2026 remains to be seen.