Andriese (foot) threw a second bullpen session Monday since landing on the injured list, Nick Piecoro of the Arizona Republic reports.
Andriese was placed on the IL on July 20 with a left foot contusion. A former starter for Tampa Bay, Andriese has worked out of the bullpen for the Diamondbacks. There's a possibility Arizona could build up his innings to start if it trades any current members of the rotation, such as Zack Greinke and/or Robbie Ray, at the deadline.