man football can be such a bitch! I don't think that was intentional but still, players should have a duty of care.
speaking from experience its the studs that make it a nightmare to go for challenge!
I believe if football boot manufacturers made the studs from a softer material, preferably rubber like material you would see less impact and damage from such collisions. I don't think its necessary for stud to be that hard.
I'm telling you most injuries are due to the impact the studs make on the knees/foot, its nasty!