You are Soooooo wrong.
He cannot know it's over - just like you cannot know it isn't...
You are correct. However, he is just 2 years out of college. I doubt that means he is done. Look at Manny with the O's. He had surgery on one knee, and shortly thereafter, the other knee goes out. Did he quit? No. He missed another year, and now is one of the best players in baseball.