Sheets is absent from the lineup for Wednesday's game against the Cubs.
Right-hander Jameson Taillon is toeing the slab for the Cubs, and this marks just the second time this season that the left-handed-swinging Sheets is out of the lineup versus a righty. Manny Machado is getting a start at designated hitter, and Ty France will be at first base for the Padres in Wednesday's rubber match.