@owengtam09. Agreed. Jon Jones did not easily injure his body during training when he was the light heavyweight champion. His cancelled fights before were only because of smorting cocaine, abuse of alcohol and the hit and run of a pregnant woman. I reckon that this injured knee might be caused by being overweight for these chicken legs!
I am quite certain these bones of Bones Jones cannot carry more than 150 kilograms without injury.
Jon Jones did not injure his knees but he tore his pectoral muscle while sparring. Jones is lifting heavy weights in the gym and his knees are fine, the injury was unfortunate and he was abusing his body for a longer period with drugs and alcohol and he is not young anymore and it will have an affect on the body.