Floyd Mayweather today revealed a serious tooth infection put his September 14 clash with Saul ‘Canelo’ Alvarez in jeopardy.

Mayweather took to social media site Instagram to show off an image of his injury which could have ruled him out of a bout reportedly worth upwards of $80 million.

The five-weight world champion was full of praise for his doctor who administered treatment and ensured the highly anticipated fight would go ahead.

On his WebStagram page, Mayweather said: “On 7/16/13 (July 16) I had a severe tooth infection. I didn’t think I was going to be able to fight. I would like to send a special thanks to Dr. Johnny Benjamin. That medicine was unbelievable.”

The 36-year-old went on to defeat Canelo in a wide points decision at a sold out MGM Grand, despite one scorecard inexplicably showing a draw. The judge responsible for that card, CJ Ross, immediately took a self-imposed leave of absence after widespread criticism.

His record now stands at 45 unbeaten fights and is widely tipped to take on Amir Khan in May after the Englishmen withdrew from a touted December 7 date with IBF Welterweight boss Devon Alexander.

‘Money’ has four fights left on a six fight, pay-per-view contract with Showtime Promotions worth in excess of $200 million, in turn becoming the highest paid boxer in history. He expects to box twice a year through until 2015 and many believe one last fight in 2016 could lead him into retirement with a 50-0 record, along with a succession of belts.

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