Yankees fan in stands returns glove to Esmerlyn Valdez

Outfielders love racking up assists, since that means they are throwing guys out on the basepaths. But sometimes an outfielder could use an assist from someone else — even from someone in the stands.

That was the case for Pirates rookie Esmerlyn Valdez, who was playing right field at Yankee Stadium on Wednesday night in the Yankees’ 2-0 win in the nightcap of a doubleheader.

In the bottom of…