Rockies manager Bud Black said Wednesday that Rolison (shoulder) recently completed a bullpen session without incident, Patrick Lyons of TheDNVR.com reports.
Rolison is currently on the 60-day injured list while recovering from the left shoulder surgery he underwent last June. The southpaw will likely begin to face hitters soon, but he's still probably at least a few weeks away from heading out on a minor-league rehab assignment.