Russian pole vaulter Yelena Isinbayeva has accused anti-doping and Olympic bosses of discrimination against Russia and violating her human rights.
Isinbayeva returned to training last year after the birth of her daughter in 2014 and is aiming for her fifth Olympics in Rio this summer.
But Russia's athletics team has been suspended from international competition since November, after the publication of an independent report into systemic doping in Russian athletics.
A decision on whether to lift that ban in time for Rio will be made by the International Association of Athletics Federations on June 17.
"I really hope this will be positively sorted out: I deserve it, it's my right," the double Olympic and seven-time world champion said.
"All of our young, talented, clean athletes deserve it, too. If they miss Rio, four years is a long time.
"I hope to see you in Rio but if the decision goes against us I will personally file a discrimination case at the court of human rights."
The 33-year-old was speaking via Skype from her home in Volvograd but there was no mistaking the strength of her feeling.
During the 20-minute call, which was briefly interrupted when she had to feed her two-year-old daughter Eva, the Russian star showed the camera a handful of recent drug-test forms.
Having broken the world indoor and outdoor records 28 times but never once in Russia, Isinbayeva said she has passed drugs tests all over the world.
She said: "I am mad about (the ban). How would you feel?
"This is my chance to win a third Olympic gold and write another chapter in my story but I am being asked to pay for the mistakes of others.
"I have worked hard to come back from giving birth. This could be a great accomplishment for women.
"I am angry because I'm helpless - they're not giving me a chance to compete. It's all becoming very stressful.
"There is so much negativity about Russia at the moment but doping isn't just a Russian problem.
"Athletes from America, Jamaica and lots of other countries have failed tests and come back two years later. Only in Russia is the entire team banned.
"It's a violation of my human rights."
Isinbayeva, who won a third outdoor gold at the 2013 Worlds in Moscow, did express sympathy for any athlete cheated out of a medal but repeated her belief that doping is an international issue and that athletes who cheat are personally responsible.
She plans to retire after the Rio Olympics and will be in Brazil whether Russia's ban is lifted or not as she hopes to be elected to the International Olympic Committee's athletes panel.
But the 2007 Laureus World Sportswoman of the Year is not interested in the idea of competing in Rio under an Olympic flag, as has been suggested in some quarters.
She said that would only apply if the entire Russian team was banned but her only desire is for the athletics suspension to be lifted so she can compete in Russian colours.
The Press Association spoke to another of Russia's most popular Olympic athletes via Skype, World and double European 110m hurdles champion Sergey Shubenkov.
The 25-year-old failed to reach the Olympic final in London but has put together three strong seasons since then, culminating in last year's world title.
"You can only feel sorry for those athletes who have been deprived of the most marvellous moment in sport: winning the race," said Shubenkov.
"But Russian athletes also been deprived of those moments too."
Both Isinbayeva and Shubenkov said they have never witnessed any doping or been asked to take banned substances.
Shubenkov, a law student, was more equivocal on the idea of competing in neutral colours in Rio than Isinbayeva, and he raised the example of his hepathlete mother Natalya who was prevented from competing at the 1984 Olympics in Los Angeles because of the Soviet boycott.
He pointed out that some western athletes had competed in Moscow in 1980 under an IOC flag and quoted a section of the Olympic charter that says every individual athlete has the right to take part.
"So which flag I might be under in Rio is under discussion but I want to go under the Russian flag with the whole delegation," he said.