Marquez (thumb) will make his next scheduled start Friday against the Cubs, Patrick Saunders of The Denver Post reports.
The young right-hander was initially tabbed for Thursday's start, but the Rockies will slide him back a day in order to allow the right thumb he bruised in his last start to heal one extra day. Nothing has come up suggesting that Marquez's availability for Friday is in jeopardy, which makes it likely that this switch is simply a precautionary measure. Tyler Chatwood will move up to fill in Thursday for the series opener in Chicago.