Arenado is not in the lineup for Sunday's game against the Reds, Thomas Harding of MLB.com reports.
Arenado went 2-for-5 with a home run and three RBI in Saturday's marathon 17-9 loss, and he'll take the day off for the series finale. Ryan McMahon will start at the hot corner in his place while Garrett Hampson takes over at the keystone.