The Boston Red Sox are pulling Walker Buehler from their rotation and sending the struggling right-hander to the bullpen.

In 22 starts, Buehler posted the worst numbers of his career with a 5.40 ERA, 16.5 percent strikeout rate and 10.7 percent walk rate.

The Boston Red Sox are moving right-hander Walker Buehler to the bullpen, manager Alex Cora told reporters on Friday, hours before first pitch against the New York Yankees (GameTracker). The Red Sox elected not to announce who will take Buehler's spot in their starting rotation.