It was a regular day, not a very intense
workout or anything, just a casual basketball game. I was able to obtain possession of the ball, and tried to go for a layup, but somebody was able to block the ball, and prevent me from scoring. When this person landed from his jump, he landed directly on my back as I was leaning over. Ever since that event I have had constant pain in my lower back.
At first, the pain was irritating, but did not bother me much.