The MLB debut is a special moment for every major league player. It is a moment they will remember for the rest of their lives.
The days of self-narrating the bottom of the ninth, two outs, full count and bases-loaded scenario in the backyard are over.
Now, nerves are high. Sweat is pouring. All they can hope for is a successful first appearance.
For some players, their big-league debut clicks on all cylinders and they play like they've been in the league for years.
Here are nine players who exceeded expectations from the start.