Dodgers outfielder Mookie Betts is headed to the injured list, manager Dave Roberts said Saturday night.

Roberts scratched Betts from the lineup for the second consecutive game Saturday, but said previously that he didn't expect the injury to be serious and that the star centerfielder was in line for an MRI.

After Los Angeles' 7-1 victory over the Guardians, however, Roberts said that the MRI revealed a cracked rib and that a return date was to be determined. The official team transaction will occur on Sunday.