Coffey, disabled with what was announced as right knee inflammation, made a second one-inning Minor League rehab appearance Friday night. But his activation figures to force Nathan Eovaldi's return to Double-A Chattanooga, and with Chris Capuano starting Sunday, Mattingly indicated the move might be delayed a day.
"With Cappy going ... Coffey's not a long guy," said Mattingly. "We're going to talk about it. I need to talk to Todd. We're only talking like one day."
The composition of the Dodgers bullpen has been jumbled, with Matt Guerrier still disabled and Mike MacDougal not getting the ball for the past week after ailing with the flu and losing his velocity. Guerrier did light tossing for the first time but his inflamed elbow tendon will keep him sidelined longer than the minimum 15 days, which are up Friday.
Josh Lindblom, initially slotted for a long relief role, has moved into a seventh- or eighth-inning role.
Ronald Belisario is scheduled to pitch Sunday for Rancho Cucamonga, then make back-to-back appearances for Triple-A Albuquerque before Friday, when he is eligible to return from a 25-game suspension for violating MLB's drug policy.