Rusney Castillo (shoulder) hit off a tee Wednesday.
It's nice step for the rehabbing outfielder, who was placed on the disabled list at Triple-A Pawtucket last Tuesday with inflammation in his right shoulder. Castillo has also been throwing lightly since last weekend. He should be back in action for Pawtucket around early May, but there remains no structured timetable for his arrival in the majors. Boston's outfield is still overcrowded.