Cardinals first baseman Albert Pujols tweaked his hamstring in the team's win over the Reds on Sunday. He was removed for precautionary reasons after the seventh inning. Pujols felt mild tightness in his right hamstring and he wasn't confident enough to declare himself ready for Tuesday's game against the Astros. "I don't want to say yes and not be there," Pujols said. "I'm a little bit sore."