LBJackal wrote:- Psycho Sid (if you consider wrestling a sport) jumping off the top rope and breaking his lower leg

I can barely watch that video. I can almost feel the pain.
Since we had different takes on it, I pulled the tape and watched it again just now. Sid Vicious in the WCW (he was Psycho Sid in the WWE when it was the WWF, but at the time of the break he was with WCW, hence Sid Vicious at the time of the break), he jumped off the
middle (not the top

) turnbuckle and sustained a compound fracture of the tibia and fibula. He was wrestling Scott Steiner at the time (who is now currently with the WWE). Really weird to just see his lower leg just hanging there at such an odd angle.
Scroll up and you will see that I already mentioned it.

Big wrestling fan here.
Didn't mention Owen Hart due to it being his death instead of an injury

. For those who don't know, Owen Hart was using a gimmick called "The Blue Meanie" and was going to be lowered into the ring from the ceiling for his match at a pay-per-view. Unfortunately, either he was not strapped in properly, or the harness broke (it was kept fairly quiet) and he fell to the ring hitting his head on the turnbuckle and breaking his neck.

Yes doctor, I am sick.
Sick of those who are spineless.
Sick of those who feel self-entitled.
Sick of those who are hypocrites.
Yes doctor, an army is forming.
Yes doctor, there will be a war.
Yes doctor, there will be blood.....