NEW YORK (AP) _ The New York Yankees activated left-handed reliever Allen Watson from the 15-day disabled list Friday night and sent rookie pitcher Darrell Einertson to Triple-A Columbus.

Watson has not pitched for the Yankees since April 22 because of a strained muscle in his left side. He was 0-0 with a 4.50 ERA in four innings for New York.

Watson, 29, joins Mike Stanton as lefties in the Yankees bullpen.

Einertson, 27, did well in his first stint in the majors. The right-hander was 0-0 with a 3.38 ERA in 5 1-3 innings.