After Triston Casas was ruled out for the rest of the season due to a knee injury, Devers was asked by the Red Sox to take over defensive duties at first base, which is something he's never done for Boston at the MLB level.

The Boston Red Sox were perfectly justified in asking Rafael Devers to vacate third base for Alex Bregman and become a designated hitter. They are far less justified in asking Devers to switch again,

Boston Red Sox superstar Rafael Devers made it pretty clear that he doesn’t want to move away from designated hitter and pick back up his glove and go to first