Rizzo held out of lineup with stiff lower back

Three score on Rizzo's single MILWAUKEE -- Cubs first baseman Anthony Rizzo remained sidelined on Saturday because of stiffness in his lower back and was questionable for Sunday's series finale against the Brewers.

"He's doing better," manager Joe Maddon said Saturday of Rizzo, who was scratched from Friday's lineup. "Maybe [Sunday] but I'm not 100 percent sure. I don't want to rush it."

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Rizzo has had back problems in the past, and usually returns to the lineup after getting treatment for two days. Victor Caratini started at first base for the second straight day on Saturday, but Ben Zobrist was taking grounders during batting practice at first. Zobrist did more work…