UFC star Michael Bisping shared gruesome images from inside his knee after his operation.
The 40-year-old Brit underwent successful replacement surgery on his left knee, swapping it out for a metal one.
And he kindly let his 1.4 million Instagram followers have a look inside his knee before and after the surgery.
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Bisping posted two images of his knee - one before the surgery and one after it when it was replaced by metal.
And talked his followers through the images, writing: "My old knee at the top. You can see circled all the damage. Bone spurs and basically worn down. Supposed to be white, smooth and rounded.
"Below is my new robocop knee. Thank you to @restoreortho and to @oc_joint_replacement for carrying out the procedure. Don't call it a comeback, but I'm back baby boy!!!"
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Earlier this week he freaked his followers out by posting a generic image of a metal knee, and he went one step further on Friday.
He said: ""Me, very soon! Yikes!" he wrote on Instagram. "Thursday morning gotta get a total knee replacement unfortunately. But very excited to get my life back. (No gold though)."
The 40-year-old former middleweight champion fought 39 times in the octagon, and it's taken a toll on his ailing body.
This isn't the first time that Bisping has shocked fans of late.
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The 40-year-old, known as the biggest name in British MMA, was discussing why he always used to wear sunglasses on a recent episode of the Believe You Me podcast.
He then decided it was necessary to show viewers instead of tell them. "That's why I used to wear fucking sunglasses, baby boy!" he said.
Bisping suffered a detached retina during a fight against Vito Belfor back in 2013.
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But despite not being able to see in his right eye, the Manchester-born fighter somehow went on to compete in several more UFC fights, dethroning reigning champion Luke Rockhold at UFC 199 in stunning fashion, as well as beating Anderson Silva on U.K soil.
In an interview with MMA Junkie this year, Bisping opened up about his eye injury.
"My vision (in my right eye) was pretty much non-existent since 2013," he revealed. "I was just about able to scrape past the medicals. It was definitely touch and go. I was always terrified of doing a full training camp, then being turned away by the commission doctor.
"It was difficult. To pass the medical test, you've got to have 20-200 vision, which is classed as clinically blind anyway, so it's not very good - it's not a very hard mark to pass. Some days I could, some days I couldn't. But fortunately, I was just able to scrape by.
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"People always say: 'How did you fight with only one eye?' And I always say: 'With great (expletive) difficulty!'"
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