Rockies third baseman Nolan Arenado left Monday's game against St. Louis due to a right thumb injury, the Denver Post reports. Arenado was replaced at third after his first at-bat.

The No. 7 hitter in the lineup was 0 for 1 before leaving and is considered day to day at this point. He's batting .268 on the year for the Rockies. Arenado is day to day.

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