Munoz (foot) will make an appearance in a B game Thursday, Corey Brock of The Athletic reports.
The plan has been for Munoz to make his Cactus League debut Friday and that presumably will still happen. Munoz has been brought along slowly in camp following October foot surgery, but he's healthy and this point and just needs to knock some rust off. He and Paul Sewald and Munoz look like 1A and 1B at closer, respectively, for Seattle this season.