A classic scenario for ski injuries goes something like this: It’s late in the day, and you want to get in just one more run. You’re tired and not as in control as you were when you were fresh.
As a result, you may “catch an edge” — accidentally digging the edge of your ski into the snow.
Because your ankle is in a binding, the torque, or rotational force, goes straight through the knee, causing the ACL to rip.
Photo: NATALIE BEHRING/REUTERS