Lugo (calf) threw a bullpen session Tuesday, AJ Cassavell of MLB.com reports.
EDGE Analysis
Lugo also tested his left calf strain with a bit of light jogging. He suffered the injury while making a start against the Royals on May 16 and still has some hurdles to clear, but the situation does appear to be progressing in the right direction -- maybe for a return sometime in early-to-mid June.