"He's been our savior," Gibson said. "Without Patrick, we wouldn't be in good shape at all."
Corbin has been the ace of the D-backs' rotation with an 11-1 record and 2.35 ERA in 19 starts. He has tossed 130 1/3 innings and is on pace to shatter his career high of 186 1/3 from last year between Arizona and the Minor Leagues.
"We've got to take care of him," Gibson said. "We're erring conservatively. You also worry about giving him too much time off."
Andrew Owens is an associate reporter for MLB.com. Follow him on Twitter @OwensAndrew. This story was not subject to the approval of Major League Baseball or its clubs.