Slaten's problems with his elbow have prevented him from throwing his breaking pitches. There isn't any time timetable for when Slaten will return to action.
Left-hander Tom Gorzelanny, on the disabled list because of a sore left elbow, will begin a rehab assignment on Monday. It is not known where he will pitch. Gorzelanny has had several bullpen sessions, and didn't have any problems throwing the baseball.
The Gorzelanny announcement means that right-hander Yunesky Maya will get another start, most likely against the Cardinals on Tuesday. In his last start, Maya had the best outing of his Major League career, allowing only a run in six innings against the Giants.