CHICAGO -- Cubs first baseman Carlos Pena said he could have played Tuesday despite suffering a mild sprain of his right thumb.
"He's day to day," Cubs manager Mike Quade said. "We could probably use him if I needed to late. We'll be careful. We get a chance to watch Mr. [Tyler] Colvin at first base."
Pena injured his thumb in the D-backs' seventh inning Monday, when he fielded Gerardo Parra's grounder.