Kershaw is a remarkably talented pitcher, having already accomplished quite a bit in his first two years in the major leagues. His arm is golden, his upside seemingly unlimited. But the reality of history shows that he's more likely to get worse than to get better, and fans counting on Kershaw to win a Cy Young or two are likely to be disappointed.

Put your faith in young hitters like Justin Upton or Matt Wieters, who are on a career path that should lead them to better things in the future. Pitchers like Kershaw will break your heart.