Sheehan (elbow) threw around 40 pitches in a simulated game Thursday, Sonja Chen of MLB.com reports.

EDGE Analysis

Sheehan has been throwing off a mound since late March and progressively increasing his workload. Manager Dave Roberts didn't have an exact timeline for Sheehan to begin a rehab assignment, but did say that step could come soon. Roberts also confirmed that Sheehan will be built up to be a starter.