Batting sixth for the first time this season, Ellsbury promptly drilled a two-run homer in his first at-bat. It was just his third home run on the season.
Ellsbury entered the game hitting .257 with two homers and 16 RBIs.
Valentine said moving Ellsbury down in the order wasn't a demotion or a reflection of his recent performance.
"Well, I'm not dropping him. I'm trying to mix the grouping up a little to see if we can get more runs on the board," Valentine said. "I also want to see [Ryan] Kalish play a little up early in the lineup."
Kalish batted leadoff for Sunday's game.