If you're going to pursue a career in Major League Baseball, it helps to be exceptionally big and strong.
But even in recent history, plenty of players have proved that such qualities aren't a prerequisite for achieving stardom in the majors.
In honor of these guys, we've ranked the 10 best undersized players to play in the majors since 2000. Exactly what should qualify a baseball player as "undersized" is debatable, yet we drew the line at 5'9". According to the Centers for Disease Control and Prevention (CDC), that's the average height for American males.