Cubs righthander Carlos Zambrano is expected to return to the rotation next week in Pittsburgh, according to the Chicago Tribune.
The righthander went 1-2 with a 7.45 ERA in four starts before being moved to the bullpen, where he posted a 4.76 ERA in 11 relief appearances. He is expected to pitch in relief at least once more before starting Monday or Tuesday.
With Zambrano returning to the starting five, the newspaper speculated lefthander Tom Gorzelanny could be shifted from the rotation to the bullpen to make room for him. Gorzelanny, who will start tonight against the Dodgers, is 2-4 with a 3.09 ERA in eight starts this season.