Scribner tied a career high with three innings pitched in Thursday's loss in Cleveland, so the A's, in need of a fresh bullpen arm for this weekend's three-game series in Seattle, called up Chavez on Friday to take his roster spot. Oakland also recalled Chavez and optioned Scribner back in April.
"It would be at least two or three days before [Scribner] would be able to pitch again, and unfortunately that's just part of that long role," manager Bob Melvin said. "That's the way it goes. We've flipped these two a couple times now, and Jesse gives us that starter-type of length, where you're not afraid to run him out there for four or five innings if something were to happen."
Chavez was initially recalled from Sacramento on April 20 and gave up four runs in 4 1/3 innings over three appearances before he was optioned on April 29. He was 1-1 with a 3.09 ERA in two starts with the River Cats following his demotion, and is 2-2 with a 2.70 ERA in five starts overall for them.
Jane Lee is a reporter for MLB.com. Read her blog, Major Lee-ague, and follow her on Twitter @JaneMLB. This story was not subject to the approval of Major League Baseball or its clubs.