Brandon Morrow will draw the start, but left-hander Jarrod Washburn will be lurking in the background should Morrow falter or run up a high pitch count.
Washburn hasn't pitched since Aug. 30 because of a strained abdominal muscle. He's ready to get in some innings and a pain-free performance on Tuesday would leave him in position to get a subsequent start, according to manager Jim Riggleman.
