2024 U.S. Open men’s doubles champion Max Purcell has admitted breaking anti-doping rules and has been provisionally suspended from tennis while under investigation.

Purcell has been suspended since December 12, having made the admission and requested to be provisionally suspended December 10. The International Tennis Integrity Agency (ITIA) confirmed the suspension December 23, saying that the Australian, 26, breached rules relating to the use of a “prohibited method,” rather than any positive test for a banned substance.

Purcell said in a statement on Instagram: “I have voluntarily accepted a provisional suspension since I unknowingly received an IV infusion of vitamins above the allowable limit of 100ml. Until last week when I received medical records from a clinic showing that the amount of an IV I received was above 100ml, I was fully convinced I had done everything to ensure that I had followed the WADA regulations and methods.

“But the records show that the IV was over the 100ml limit, even though I told the clinic that I was a professional athlete and needed the IV to be under 100ml.”

According to the World Anti-Doping Authority (WADA), “infusions or injections of 100 ml or less within a 12-hour period are permitted unless the infused/injected substance is on the Prohibited List.”

A “prohibited method” comes under three possible definitions in the WADA code: blood manipulation, widely referred to as blood doping; chemical and physical manipulation, which extends to all forms of tampering or doctoring either blood or urine samples and also covers intravenous infusions; and gene and cell doping. Purcell’s violation falls under chemical and physical manipulation.

The ITIA has not yet commented on the specifics of Purcell’s violation.

As the suspension is provisional, it is unclear how much tennis Purcell will miss but that time will be credited against any ultimate sanction when the investigation into his case concludes. He was absent from the Australian Open’s list of singles wildcards despite being ranked world No. 105, just outside the cut-off for entries to the main draw.

Doubles entry lists have not yet been released, but Purcell, who won the U.S. Open title in September with compatriot Jordan Thompson and is ranked world No. 12 in doubles was in line to enter his home major. Purcell also won the Wimbledon men’s title with Matt Ebden, another Australian, in 2022.

Purcell is the third major champion in 2024 to be charged with an anti-doping violation. Defending Australian Open champion and world No. 1 Jannik Sinner, who twice tested positive for the banned substance clostebol in March, was found not to be at fault by three independent tribunals convened by the ITIA. Sinner, who also won the U.S. Open title, is awaiting the result of a WADA appeal to the Court of Arbitration for Sport (CAS), which could see him banned for up to two years.

French Open champion Iga Swiatek, who tested positive for trimetazidine (TMZ) in August, served a one-month ban. 22 days of that ban were covered by her provisional suspension, which saw her miss three tournaments. Swiatek was deemed not to be at significant fault.

(Clive Brunskill / Getty Images)