So what? I’m not sure what your point is here.

It takes, on average 6 weeks for a fracture to heal. A full fracture.

Average means some people take longer to heal and some people take less time to heal.

His injury was a hairline fracture. Hairline.

It’s been a month.

The math is not off.

My neighbor is 82. She broke her leg last year, a full break of the tibia and was up walking around without crutches or a cane within 5 weeks. She’s an avid walker and cyclist. Activity level matters.

So again, I’m not sure what your point is other than you think it was fake because he got over the injury too quickly in your mind so it must have been faked.

Alternative theory: maybe he’s just tougher than you.