Closer J.J. Putz will begin his rehab assignment work by pitching Sunday, then Tuesday in the Arizona Rookie League.
On the disabled list since June 13, Putz will then make a Friday appearance for Tacoma.
Beyond that? The Mariners will evaluate Putz after his Tacoma game, and if he's sharp, he'll return to the Seattle bullpen.
"It's not about strength, it's about command," Putz said. "If I can control both sides of the plate, I'll be ready."