Heavyweight star Tyson Fury to 'walk away' from boxing

Undefeated heavyweight Tyson Fury said "bon voyage" to boxing again Friday on his 34th birthday.

"Massive thanks to everyone who had an input in my career over the years after long hard conversations (I've finally) decided to walk away on my 34th birthday I say bon voyage," he posted on social media.

Fury announced earlier in the week that he was coming out of retirement to fight fellow Brit Derek Chisora.

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