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7/5/2014 4:01 P.M. ET

Harper slides down to sixth in Nationals' order

WASHINGTON -- A day after saying that outfielder Bryce Harper would hit near the top of the batting order against right-handed pitchers, Nationals manager Matt Williams decided to place Harper sixth in the order against Cubs righty Carlos Villanueva on Saturday afternoon.

The reason for the change of heart is that Harper is 3-for-15 (.200) in four games since being activated from the disabled list on Monday. Harper missed two months of action because of torn ligaments in his left thumb.

"Bryce is a little tick off [with his swing]," Williams said. "We certainly want to get him going. He needs at-bats. Yesterday, I thought we would give him an opportunity to potentially get some good fastballs to hit if Denard [Span] got on. [Harper] is a little jumpy still. He continues to work on it. He'll be fine. He'll get it. It will come quickly."

With Harper hitting sixth, second baseman Anthony Rendon was moved back to the second spot in the order. Entering Saturday's action, Rendon was hitting .290 with nine homers and 34 RBIs in 59 games hitting second this season.

Espinosa working to fix swing from left side

WASHINGTON -- Nationals second baseman Danny Espinosa is consistent as a right-handed hitter, going 18-for 65 [.277] entering Saturday, but he continues to have problems from the left side of the plate, hitting .196 with 75 strikeouts in 179 at-bats.

Why is Espinosa more successful from the right side of the plate?

"When he starts to swing from the hitting slot, he is more free [from the right side]," hitting coach Rick Schu said. "Left-handed, he has got a little longer path to get there, so he is more consistent right-handed."

Schu said he is not frustrated trying to fix Espinosa's left-handed swing, and he believes there is a lot of potential in the swing. Manager Matt Williams went so far as to say that it's special when Espinosa gets his bat head on the ball from the left side. The skipper loves Espinosa's power from the left side.

"You know in this game, if you try too hard, it's counterproductive," Schu said. "He wants to do so well. He is a hard-nose player. He tries too hard then tries to add more, so the swing gets a little long. … He has a chance to be a really good player and be in the big leagues for a long time."

There isn't any talk of making Espinosa strictly a right-handed hitter. As Williams put it, Espinosa continues to work hard in the batting cage and is trying to fix his left-handed swing. Williams wants to continue to give Espinosa matchups against right-handed pitching, which would come late in the game.

Since the return of Bryce Harper on Monday, Espinosa hasn't received one at-bat, but he has entered a game for defensive purposes.

Meanwhile, opposing teams continue to express interest in trading for Espinosa, but the Nationals have made it clear that they are not going to give him away.

Bill Ladson is a reporter for MLB.com and writes an MLBlog, All Nats All the Time. He also can be found on Twitter @WashingNats. This story was not subject to the approval of Major League Baseball or its clubs.