Mike Adams could be placed on the disabled list if he doesn't feel significant improvement with his back by Tuesday.
James McDonald (shoulder) will begin a rehab assignment with Double-A Altoona on May 27.
Tyler Cloyd will be recalled to start on Tuesday against the Marlins.
John McDonald (back) is also dealing with a right elbow injury.
Ronny Cedeno was scratched from Sunday's lineup due to a sinus infection.
Ryan Howard is not in the Phillies' lineup Sunday.
Luis Cruz is nursing a sore throwing elbow.
Mark Ellis (quad) could be activated prior to Sunday's game.