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Born in the Murrayfield area of Edinburgh in 1976, Chris Hoy was educated at George Watsons College before studying at the University of St Andrews and the University of Edinburgh, where he graduated with a degree in applied sports science.
He competed in BMX racing from the age of seven, at one point being ranked second in the UK, and also represented Scotland in rowing before taking up track cycling.
That decision saw Hoy become Scotland’s greatest ever Olympian, winning six gold and one silver medal between 2012 and 2021. He also won 11 world titles and two Commonwealth gold medals.
Read more: ‘We’re all terminal’ - Olympic legend Sir Chris Hoy on coming to terms with his cancer diagnosis
He lives in Edinburgh with his wife Sarra and their two children and was awarded a knighthood in the 2009 New Year Honours list.
In October 2024 he revealed he had been diagnosed with stage 4 prostate cancer in 2023 and had been given between two and four years to live.
And this week saw him mark his 50th birthday on Monday, March 26.
To mark the day here are 26 interesting quotes from the athlete over the years - including his reaction to his illness.
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13. Chris Hoy on...mental health
"I'm lucky not to have suffered any severe problems with my mental health but there have been lows, like when Callum was born prematurely and had to spend so much time in hospital." | Getty Images
14. Chris Hoy on...who would play him in a film
"I'd love to see Will Ferrell play me in a spoof track cycling movie." | Getty Images
15. Chris Hoy on...his parents
"What I learned from my parents is just to be a source of unconditional love for my children." | Getty Images
16. Chris Hoy on...his knighthood (again)
"Of course I don't expect people to call me Sir Chris. That'd be embarrassing." | Getty Images