The Game chalked up two points … and two broken bones … during a basketball game in L.A. this weekend … when a slam dunk went terribly wrong.

TMZ has learned … Game broke a bone in his thumb and his wrist during a playoff game in the famous Drew League in Los Angeles.

According to our sources, Game fell after a slam dunk … and while he was on the ground, somebody accidentally stomped on his right hand … crushing the bones.

РReported by TMZ