24-time men's Grand Slam champion Novak Djokovic says Jannik Sinner's doping case "is not helping tennis at all". Sinner, the men's world number one, was cleared of any wrongdoing after twice testing positive for low levels of clostebol - a steroid that can be used to build muscle mass - during the Indian Wells tournament in March. The World Anti-Doping Agency have appealed against the decision which said Sinner bore 'no fault or negligence' for the substance being in his system.

World number one Jannik Sinner says he is "surprised" by the World Anti-Doping Agency's appeal against the decision to clear him of blame after he twice tested positive for a banned substance.

News that Jannik Sinner, the men's world number one, had failed two doping tests stunned tennis. BBC Sport examines the key questions at hand.

In his first visit back to Utah since awarding Salt Lake City the 2034 Winter Games, the International Olympic Committee president sought to ease worries that the city could lose its second Olympics if organizers don't fulfill an agreement to play peacemaker between anti-doping authorities.

Yannic Seidenberg, who won the silver medal with the German men's hockey team at the 2018 Olympics, has had his doping ban cut by 18 months.

Olympic silver medalist race walker Koki Ikeda of Japan has been provisionally banned for suspected blood doping, track and field's Athletics Integrity Unit said on Friday.

Alexei Zheleznyakov, who is part of the team of Russian figure skating coach Eteri Tutberidze, responded to recent reports about a suspicious doping test that one of the skaters of the Russian national team had at the Beijing Olympics. Zheleznyakov said that he did not believe that anyone from the Russian team could violate anti-doping rules. "The guys took samples before the Games, most likely when they arrived and after their performances. We were staying at the hotel without getting out, but now they suddenly found something, and it happened right after the gold medal,” Alexei Zheleznyakov, who choreographs the Russian figure skaters in Beijing wrote on his Facebook account.

Kamila Valieva's doping test revealed the presence of three substances to improve the heart function, the US Anti-Doping Agency (USADA) said. According to The New York Times, these drugs can be aimed at increasing endurance, if used in combination. According to USADA's chief Travis Tygart, Kamila Valieva's doping test revealed the presence of trimetazidine, L-carnitine and hypoxen. Of these three drugs, it is only trimetazidine that is included in the list of drugs prohibited for athletes. "It's a trifecta of substances — two of which are allowed, and one that is not allowed. The benefits of such a combination "seem to be aimed at increasing endurance, reducing fatigue and promoting greater efficiency in using oxygen," Travis Tygart said.

Russian figure skater Kamila Valieva said that she was emotionally tired of the doping scandal, in which she found herself at the Beijing Olympics. "These days have been very hard for me, there are not enough emotions. I am happy, but I am emotionally tired. There are tears of happiness and grief a little. But, of course, I am happy to be at the Olympics. I will try to represent our country and I hope that I will be as motivated as possible to show a good result,” said Valieva. According to the athlete, she saw all the good wishes, and even banners in her support in the streets of Moscow.

Exogenous substances, including drugs and chemicals, can transfer into human seminal fluid and influence male fertility and reproduction. In addition, substances relevant in the context of sports drug testing programs, can be transferred into the urine of a female athlete (after unprotected sexual intercourse) and trigger a so-called adverse analytical finding. Here, the question arises as to whether it is possible to distinguish analytically between intentional doping offenses and unintentional contamination of urine by seminal fluid. To this end, 480 seminal fluids from nonathletes were analyzed to identify concentration ranges and metabolite profiles of therapeutic drugs that are also classified as doping agents. Therefore, a screening procedure was developed using liquid chromatography connected to a triple quadrupole mass spectrometer, and suspect samples (i.e., samples indicating the presence of relevant compounds) were further subjected to liquid chromatography-high-resolution accurate mass (tandem) mass spectrometry. The screening method yielded 90 findings (including aromatase inhibitors, selective estrogen receptor modulators, diuretics, stimulants, glucocorticoids, beta-blockers, antidepressants, and the nonapproved proliferator-activated receptor delta agonist GW1516) in a total of 81 samples, with 91% of these suspected cases being verified by the confirmation method. In addition to the intact drug, phase-I and -II metabolites were also occasionally observed in the seminal fluid. This study demonstrated that various drugs including those categorized as doping agents partition into seminal fluid. Monitoring substances and metabolites may contribute to a better understanding of the distribution and metabolism of exogenous substances in seminal fluid that may be responsible for the impairment of male fertility.

Canada’s privacy commissioner has launched an investigation into the World Anti-Doping Agency (WADA) and “its handling of biological samples collected from athletes.”

BROCK Lesnar was allowed to dodge an anti-doping policy to make his megastar comeback at UFC 200 but what’s happened since is remarkable.

Sinner provided an in-competition sample at the Indian Wells Masters on March 10, 2024 which contained the presence of a metabolite of clostebol at low levels, according to the ITIA

Sinner's case has created a storm considering other players who failed drugs tests usually get suspended during the course of the investigation.

WADA said it would seek "a period of ineligibility of between one and two years" for Italy's Jannik Sinner

WADA made the appeal announcement as Sinner was on court at the China Open, where the defending champion fought back to beat 69th-ranked Russian Roman Safiullin 3-6, 6-2, 6-3 in Beijing

The AFI chief said the athletes needed to declare their coaches’ names in dope control forms and all the coaches would have to be registered with the federation

The two champion athletes agree on both the crux of the problem — incorrect or insufficient guidance — and the reasons for it — increased competition and desperation to succeed — but differ in how accountability should be apportioned

Four-year bans are standard under the world anti-doping code but can be reduced in cases where an athlete can prove their doping was not intentional, if the positive test was a result of contamination or if they provide “substantial assistance” to help investigators

Usain Bolt and Mo Farah are among the athletes who are racing clean, along with Jessica Ennis-Hill, according to the avalanche of data reported this weekend.

Jessica Ennis-Hill's coach has told Sebastian Coe to immediately start drawing up a list of medals that should be taken from drug cheats and handed to the athletes they robbed.

INTERVIEW BY MARTHA KELNER: Jessica Ennis-Hill accepts that, through no fault of her own, some people might be deterred from voting for her because of the doping crisis engulfing athletics.

Fresh evidence that Russian footballers were helped to cheat during their nation's state-sponsored doping scandal will arrive at FIFA within weeks.

Four men arrested March 9 as part of the federal government's racehorse doping investigation pleaded not guilty on Tuesday in a telephonic arraignment conducted by District Court Judge P. Kevin Castel for the Southern District of New York. The defendants waived their right to physically appear in court because of the coronavirus (COVID-19) pandemic. Veterinarian […]

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