The first man to run a mile in under four minutes has died aged 88. He was a neurosurgeon.
Commenting on the Parkinson's disease which began in 2011, he said:
"I have seen, and looked after, patients with so many neurological and other disorders that I am not surprised I have acquired an illness," he said at the time.
"It's in the nature of things, there's a gentle irony to it."