"Still pretty tender," manager Ryne Sandberg said. "Nothing that's too serious."
Sandberg said Herrera's foot is a "day-to-day" situation, and that Herrera could pinch-hit Wednesday if needed.
Todd Zolecki is a reporter for MLB.com. Read his Phillies blog The Zo Zone. Follow him on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.