I injured my knee last night in my deck hockey game. I was running behind the net and I felt a pop. I collapsed immediately in pain. Damn did that hurt. I can not put any weight on that leg. It hurts like hell this morning. A quick trip the ER last night (in and out in an hour!) gave it a sprained lateral collateral ligament diagnosis. They didn't take an x-ray or MRI though. The PA just looked at it. Man, this feels too painful to be a sprain. I plan on seeing an orthopedic specialist for a more thorough examination of the knee. Anyone ever sprain that ligament? What did it feel like? I wouldn't think a sprain would involve a "POP" when it happened. I felt like someone gave me a real hard two handed slash to the knee, but there was no one near me.