Matz (shoulder) threw a bullpen session Saturday, Katie Woo of The Athletic reports.

EDGE Analysis

Matz progressed to throwing from flat ground last week, and he's now advanced to pitching off a mound. He's still likely a few weeks away from a return -- he'll need additional bullpen sessions without setbacks before throwing live batting practice, and it's expected the southpaw will ultimately need multiple rehab starts. Matz's absence is now expected to stretch at least into mid-July.