Castillo's contract was selected from Triple-A Iowa on Thursday, Meghan Montemurro of the Chicago Tribune reports.

EDGE Analysis

Castillo appeared in 40 games in Iowa this year, and he hit .194 with 11 runs and eight RBI with the Triple-A club. He'll serve as catching depth for the major-league club after Austin Romine was placed on the injured list for an unspecified reason Thursday.