"We're not leaning towards anything at this point," Gibson said. "We just had a discussion."
The team will wait and see how Trevor Cahill looks in his rehab start Monday for Triple-A Reno, as that could play a role in the decision.
• Speaking of the rotation, Gibson generally likes to err on the side of giving his starters an extra day rather than skipping one.
"You can just see when guys get a little tired, maybe they don't come out as sharp, and it takes them a while to get going in their next game," Gibson said. "You give them an extra day, it seems to freshen them up a little bit."
• Heading into Saturday's game, Martin Prado was 19-for-53 (.358) in 14 games since the All-Star break.
Steve Gilbert is a reporter for MLB.com. Read his blog, Inside the D-backs, and follow him on Twitter @SteveGilbertMLB. This story was not subject to the approval of Major League Baseball or its clubs.