KSI claims he's suffered with toothache for NINE YEARS - but fans are convinced he's actually trolling Tommy Fury.
The YouTube, music and boxing star was beaten for the first time in October, losing a controversial decision to Fury.
Fury this month revealed he had undergone hand surgery for an injury that has hampered him since 2019.
And he claimed it disrupted his training to fight KSI.
Many believe this is what lies behind KSI's own 'injury reveal'.
KSI, 30, posted online: "Since 2015 I have been dealing with a toothache that I've never spoken about/shared online.
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"Since my first professional fight I have been trying to manage this injury, training and fighting through extreme pain which led me to often not being able to box at all.
"For the last four weeks of my last camp I was only able to do jumping jacks until fight night.
"This morning I underwent surgery I've been putting off for years as I know this is the only way my tooth will heal and that I can move forward with my boxing career.
"I'm excited for my recovery journey and so ready to be back feeling 100% in 2024."
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Fury, 24, posted a similar message accompanied with a picture from a hospital bed onto his Instagram page just five days earlier.
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He wrote: "Since 2019 I have been dealing with a hand injury that I’ve never spoken about/shared online.
"Since my third professional fight I have been trying to manage this injury, training and fighting through extreme pain which led me to often not being able to use my right hand at all.
"For the last four weeks of my last camp I trained solely with my left hand until fight night.
"This morning I underwent the surgery I’ve been putting off for years as I know this is the only way my hand will heal and that I can move forward with my boxing career.
"I’m excited for my recovery journey and so ready to be back feeling and giving 100% in 2024."
The almost identical message had fans adamant KSI was mocking Fury.
One wrote: "The trolling is crazy."
Another added: "Dig at Tommy."
But one argued: "This would be a funnier troll if he had beaten Tommy but now he just looks like a sore loser no matter what he does."
Fury, who also beat Jake Paul in 2023, has started his recovery by training with one hand and the other in a cast.
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KSI meanwhile revealed he will fight again in 2024 after taking time out and vacating his cruiserweight Misfits Boxing title.