D'Arnaud (foot) caught Yusei Kikuchi's bullpen session July 5 and progressed to running the bases July 10, MLB.com reports.
D'Arnaud had already been swinging a bat and throwing, but the advancement to running the bases is a big step in his recovery from plantar fasciitis in his right foot. If the veteran backstop continues to make steady progress, he could be activated from the 60-day IL by the end of July. In the meantime, Tyler Heineman will remain the backup catcher to Logan O'Hoppe.