Chris Volstad was removed after allowing four runs in two innings against the Phillies on Thursday.
Volstad is now 0-6 with a 7.46 ERA and is in jeopardy of losing his spot in the starting rotation, with Travis Wood the most likely candidate to replace him. Wood is 2-3 with a 4.98 ERA in six starts at Triple-A Iowa and recorded a no-decision in his only start with the Cubs this season.












