Harvey (elbow) threw a full bullpen session Tuesday, Roch Kubatko of MASN Sports reports.
According to the report, the Orioles were "really encouraged" with how the session went for Harvey, who is now roughly 10 months removed from Tommy John surgery. If Harvey continues to progress without any hiccups, he could return to competitive action at the lower levels by late June or early July. The right-hander has fared well when healthy since being drafted in the first round in 2013, but elbow issues have cost him two-plus years of development time.