Panel discussion: why are anterior cruciate ligament breakings becoming so sadly common??

First, it was Afellay. Then, Ion Vélez, from Girona FC. Then, Eneko, from CE Sabadell FC. And now Villarreal's star striker, Giuseppe Rossi. All them have fallen victim to the "fashion" injury: anterior cruciate ligament breaking. So this is the question:

Why are anterior cruciate ligament breakings becoming so sadly common??

Don't hesitate to answer if you got anything to say!!