"It's fine," Schumaker said. "I'll be available if they need me."
Schumaker was not in Wednesday's starting lineup but was at least available to manager Mike Matheny for a pinch-hit role. That's particularly crucial given that Rafael Furcal (back stiffness) and Allen Craig (rib bruise) also are both dealing with ailments.
With Schumaker unavailable to start at second base, Tyler Greene drew the assignment. Since June 1, Greene has started just 15 games. He is batting .222 on the season.