Marlins' 21-year-old right-hander Jose Fernandez leads a stacked field in the battle for top rookie honors.
Despite putting up big power numbers, Rockies rookie catcher Wilin Rosario has gone widely unnoticed this season.
He's just a rookie from Jersey, but Todd Frazier already has a sandwich named after him. And he has the Reds feasting on the National League.
Rick Porcello and Elvis Andrus are among several rookies who've made valuable contributions to their teams through the first three months of the season.
The D-backs' decision to save Brandon Webb an extra day has already paid off, allowing their ace to open a critical weekend series in Colorado.
He may be a rookie, but Troy Tulowitzki's old-school approach has energized the Rockies' run for the NL wild card.