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MIKE TYSON UNDERGOES NECK SURGERY

Retired boxing champ MIKE TYSON is sporting a neck brace and a nasty scar after undergoing surgery to fix a degenerated disc.

The fighter, 46, stunned onlookers on Saturday  when he showed up to a charity auction held by the World Boxing Council and Hublot Watches in Las Vegas with a large scar on his neck.

It has since emerged that Tyson recently went under the knife and had titanium pins inserted to support his neck as a result of an old spinal injury which had been causing him pain.

The sports legend took to his Twitter.com page on Sunday to offer up an explanation, writing: "I was damaged before I even entered boxing."