"It was very difficult [to spot]," Long said then. "Everything looked pretty similar to what he was doing earlier."
The tip seems to have registered. Ellsbury has at least one RBI in six of his last seven games since May 23, batting .286 (8-for-28) with a double and a home run, coming out of a stretch that saw him go a career-long 16 games without an RBI.
"He's swinging the bat better. It's just what happens," Yankees manager Joe Girardi said. "This guy is a very good hitter and you're not going to keep him down forever. He just went through a funk and he's out of it."
Bryan Hoch is a reporter for MLB.com. Follow him on Twitter @bryanhoch and read his MLBlog, Bombers Beat. This story was not subject to the approval of Major League Baseball or its clubs.