Browns receiver

So from what I have read about Steptoe's injury he dove for a ball in practice, landed on his shoulder and hurt himself. How does that make it the coaches fault? I have heard of some dumb reasons to blame a coach by an agent but this one is pretty bad. Whether or not it was raining and the coach changed how they were going to practice if he hadn't dived for the ball he never would have injured himself. He tried to make a great play in practice and secure a spot on the team, oh well, if you stay quiet you earn points and make yourself a reason the team may be losing (it is the browns they will be losing a lot), if you blame the coach you look like an idiot.