Call it the ultimate icebreaker.
There's no better way for a rookie to introduce himself to the world of Major League Baseball -- and, presumably, calm his own nerves -- than with a triumphant debut performance in the bigs. For some, it's a sign of greatness to come; for others, well, it remains their finest moment in the sun.
Baseball has had its share of notable debuts -- most recently, Trevor Story of the Colorado Rockies -- so many that we can only scratch the surface.
Here are just a few of our favorites: