St. Louis Cardinals left-hander Mark Mulder has rotator cuff inflammation and irritation in his left shoulder, an MRI revealed. The Cardinals plan to re-examine Mulder's shoulder in about a week, and haven't set a timetable on his return. Mulder was supposed to start Sunday, but Sidney Ponson took his spot in the rotation against the Tigers. Mulder was put on the 15-day disabled list Thursday because of a shoulder strain after giving up nine runs in 2 1-3 innings against the Chicago White Sox. "When you throw that bull I was throwing up there, it's not going to get it done," Mulder said after the poor outing.