There was a lot of talking about this type of injuries but some real measures are still not there. We can see that this type of leg breaks are happening all the time.
In this case it was UFC straw weight Angela “Your Majesty” Magana in the black trunks fighting against an unknown girl, probably with wrestling background.
As you can see in a video Angela did jumping guard pull and in that moment the leg snapped. You can hear the screaming sound of this poor athlete and bones snapping and I think you will agree with me that this is one of the worst, if not the worst leg break in BJJ or grappling matches ever.