Realmuto builds case for September callup

DENVER -- Double-A Jacksonville catcher J.T. Realmuto continued his September callup campaign Saturday by finishing 1-for-4 with two walks, three RBIs and his eighth home run of the season.

Realmuto, the Marlins' No. 7 prospect according to MLB.com, has had two brief stints with the big league club this season, going 4-for-20 with five RBIs in seven games. But the former high school quarterback has made huge offensive strides at the Double-A level this season, raising his average from .239 in 2013 to .298 this year.

On Friday, Marlins manager Mike Redmond singled out catcher as one of the positions Miami wants to bolster when the rosters expand in September. And considering the Marlins' willingness to let him jump Triple-A twice this season, Realmuto seems like a prime callup candidate.

Through 90 games, Realmuto's 61 RBIs, 61 runs, five triples and 17 stolen bases lead all Southern League catchers.