The Cubs called up a pair of rookie pitchers for their doubleheader against the Cardinals on Tuesday.
Before the Cubs beat the Cardinals 2-0 in the afternoon game, they selected Javier Assad from Triple-A Iowa to make his major-league debut as the Cubs’ Game 1 starter and added Nicholas Padilla as the 27th man. To make room on the roster, the Cubs optioned reliever Kervin Castro to Triple-A and transferred outfielder Jason Heyward from the 10-day IL to the 60-day.