I was playing soccer and my foot stopped but my body kept moving sideways and my knee made a weird popping/cracking sound, like when you crack your fingers but louder. I couldn t walk initially but then it got a little better, still limped. However, as the night went on my knee became sore again, not too painful, but I can t bend it 90 degrees without it feeling like it will pop out of place. Is it just sore from the impact?