As Formula 1 commentary legend Murray Walker celebrates his 90th birthday, BBC Radio 5 live F1 commentator James Allen catches up with his old mentor to chat about his amazing life in motorsport.

Walker offers an update on his health after a recent cancer scare and talks through some massive moments in his career, including Nigel Mansell's tyre exploding in 1986 and the death of Ayrton Senna. He also gives his views on the recent booing of world champion Sebastian Vettel which he says makes his 'blood boil'.