Sir Bradley Wiggins, 36, is under a lot of scrutiny right now after his medical records were leaked by Russian hackers.
The records show that the eight-time Olympic medalist, and most decorated British Olympian of all time, has taken banned steroid triamcinolone on a few occasions, most notably just before his Tour de France win in 2012.
However, the cyclist explains that the drug was taken to help combat his asthma problems.
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Wiggins said: "I’ve been a lifelong sufferer of asthma, and I went to my team doctor at the time and we went to a specialist.
"Yeah, there’s something you can do but you’re going to need authorisation from cycling’s governing body.
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"You have to show and provide evidence from a specialist. They will then scrutinise, with three independent doctors, and authorise you to take this product."
“So if one of those three doctors says no, you don’t – you get declined.
"This was to cure a medical condition. This wasn’t about trying to find a way to gain an unfair advantage."
The use of the steroid was ratified by British Cycling's governing body, but to many, his use of the drug is seen as misleading, as he claimed to have never injected anything apart from vaccinations in his autobiography.
While he gives no response to this accusation, Wiggins explains further the advice he was given at the time by team doctors.
"Team Sky have the medical team there, coaches checking everything’s OK - ‘Bradley you’re on track here, you’re the favourite to win this race. Is there anything we can help with at the moment?’
"Well, I’m still struggling with this breathing. Is there anything else you can do just to make sure this doesn’t become an issue into a three-week race at the height of the season?'
"And in turn I took that medical advice."
Whilst Wiggins' argument makes sense, this episode does naturally throw some question marks over his glittering career that has seen him win eight Olympic medals, the Tour de France, and many other titles in both national and world time trial championships.
Wiggins isn't the only Olympian to have their records leaked, as Mo Farah, Chris Froome, Simone Biles and the Williams sisters have all been threatened by the same hacking group.