Sulser (lat) threw 10 pitches off a mound recently, Christina De Nicola of MLB.com reports.
Sulser resumed playing catch in late June and took another step in his recovery process by throwing off a mound. Although he had a limited pitch count and didn't throw at full strength, he'll presumably keep working on building back up. The right-hander has been on the injured list for a month, so he'll require a rehab assignment prior to rejoining the Marlins.