Graveman (elbow) signed with the Cubs on Saturday, Jon Heyman of FancredSports.com reports.
Graveman underwent Tommy John surgery in late July. A typical recovery timeline will keep him sidelined for most if not all of 2019, and it's unlikely that he'll have time to build back up to being a starter if he does end up pitching any major-league innings. The 28-year-old had an ugly 7.60 ERA in seven starts prior to the injury last season, though he'd never posted an ERA worse than 4.19 in any of his four previous seasons.