Heaney (shoulder) threw 30-to-35 pitches over two innings during a bullpen session Monday, Bill Plunkett of The Orange County Register reports.
Heaney threw 30 pitches in a bullpen session Friday, and he had a similar pitch count while throwing off a mound. Manager Dave Roberts is optimistic the southpaw will be able to face hitters following Monday's session, but the team will wait to see how Heaney feels Tuesday before determining his next steps.