Van Berlo (hamstring) had an intense training session on Sunday with emergency Matthew Jaensch, who was kept out of the SANFL on the weekend.
Stevens (concussion) hopes to be cleared to join the rest of the group at training.
In other injury news, Rory Sloane (ankle) is out of his moon boot and Brad Symes (knee) is expected to start running this week. Nathan Bock and James Sellar (hamstrings) will probably miss two more games.