KSI recently revealed he has endured toothache for a whopping nine years.
However, some fans suspect that he might be trolling Tommy Fury, especially considering their recent boxing match, which ended in a controversial decision in Fury's favor.
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.
"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."
Just five days before, 24-year-old Fury shared a similar message along with a photo from a hospital bed on his Instagram page.
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."
Fans became convinced that KSI was mocking Fury with the nearly identical message.
One commented, "The trolling is crazy."
Another added, "Dig at Tommy."
However, some pointed out, "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 secured a victory against Jake Paul in 2023, is now in the recovery phase, training with one hand while the other is in a cast.
KSI shared that he plans to return to the boxing ring in 2024 after taking a break and vacating his cruiserweight Misfits Boxing title.