“As an athlete, you are extremely vulnerable”: Casper Ruud speaks on Jannik Sinner’s doping case and fair treatment
ATP
Casper Ruud
shared his opinion on Jannik Sinner’s doping case and defended the ITIA's
decision not to suspend the Italian player. The three-time Grand Slam runner-up
stated that after reviewing the case documents and conducting further research,
he realized that there was no different treatment for the world No. 1.
Just days
before the US Open, Sinner revealed that he had tested positive for doping
twice in March at Indian Wells. The case was previously unknown until Sinner's
announcement, and while the ITIA found him innocent, unlike other players,
Sinner was not suspended from competition.
“He has a reasonable explanation” – Casper Ruud
Several
players on the Tour criticized what they perceived as differential treatment
for Sinner, including Nick Kyrgios, Denis Shapovalov, and Simona Halep
(suspended in 2022). The ITIA determined that the doping involved minimal
amounts that did not affect the player's performance, and the investigation
found that a physiotherapist's mistake was the cause of Sinner's positive test
for clostebol.
Read also
The
physiotherapist, Giacomo Naldi, used an anabolic substance to treat small cuts
on his hands. The spray he used contained clostebol, and since Naldi treated
Sinner without gloves, the contact with Sinner's minor wounds led to the
substance entering his system.
Notable
past cases of positive doping tests where players faced long suspensions before
proving their innocence include Halep, Nicolas Jarry, and Beatriz Haddad Maia.
In an interview with Norwegian media TV2, Casper Ruud addressed the case and
defended that there was no differential treatment for Sinner: “If you have read
the documents and understand the process in this type of case, then you
understand that there is no discrimination here.”

Casper Ruud at 2024 Wimbledon.
“What
Sinner has done well, to defend himself, is that he managed to find an
explanation within 15 days after testing positive. He understood quite quickly
where it came from,” the former world No. 2 added. “There are not many athletes
who manage to come up with an explanation within 15 days, but Jannik has
managed it. It speaks in his favor that he quickly found out where the
substance came from and that he has a reasonable explanation.”
“It is an
extremely small dose that came through a skin eruption, as I understand it, and
I assume there are good doctors analyzing this and thinking that it is a
credible explanation.”
Read also
Ruud also
reflected on how easily an athlete could face an involuntary doping issue: “In
a restaurant, both the chef and the waiter can put things in your food if they
have something against you. I have experienced this myself. I live under strict
supervision, and it is something I think about, and something I know Jannik
thinks about. As an athlete, you are extremely vulnerable.”

Cristhián AvilaTennis Journalist
Cristhián Ávila is a tennis journalist based in Santiago, Chile, and has been part of the TennisUpToDate team since early 2023. He covers the ATP and WTA Tours as well as all four Grand Slams, producing breaking news, match reports, analysis, and regular liveblogs from major tournaments.
His reporting combines statistical analysis with clear explanation, helping readers understand tactical developments, player form, and broader storylines across the tour. Working fluently in both Spanish and English, Cristhián collaborates with an international editorial team and contributes to comprehensive global coverage. As part of his work, he has conducted interviews and media interactions with leading figures in the sport, including Caroline Wozniacki and John McEnroe.
In his journalism, Cristhián places strong emphasis on careful sourcing, editorial accuracy, and updating articles promptly when new, verified information becomes available. His coverage is grounded in research, context, and direct engagement with professional tennis.
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