Palacios is out of the lineup for Monday's game against the Red Sox, Ryan Bass of Rays.tv reports.
The Red Sox are sending left-hander Connelly Early to the hill in the series opener, so the left-handed-hitting Palacios will give way to platoon mate Ben Williamson at the keystone. Palacios had started in each of the Rays' previous seven games, batting .154 with a 5:4 BB:K, four runs and two RBI over that stretch.