Wilin Rosario reported to the Rockies' spring training complex early, where he'll spend significant time working on fielding grounders at first base, the Denver Post reports.

Rosario reported to the Rockies' spring training complex early, where he'll spend significant time working on fielding grounders at first base, the Denver Post reports.

Analysis:

While his role behind the plate is diminishing, Rosario will likely still be in the mix to catch for the Rockies if needed, but he's going to have a chance to serve as the primary backup to Justin Morneau at first base. Further, the Rockies could use Rosario at first on days when the team is facing a left-handed starter, as Morneau is ideally suited for a strict platoon.