“I think he’ll be fine,” Manager Davey Johnson said. “This field is pretty hard. We’ll just give him today and tomorrow.”

LaRoche played in only 43 games last season because of a torn labrum in his left shoulder, but in his second season in Washington he has been one of the most durable Nationals. Since LaRoche missed four games in early May with a sore oblique, he has played in 32 consecutive games. Only Danny Espinosa and Ian Desmond, who lead the team with 59, have played in more games than LaRoche.

In LaRoche’s place today, Tyler Moore will receive his first major league action at first base, his natural position. Moore played his entire minor league career at first base before the Nationals tried him in the outfield days before his call-up.

“I asked Tyler, ‘Oh, by the way, do you have a glove?’ ” Johnson said.

Also, Roger Bernadina said he expects to return Friday from a hamstring strain. Bernadina left Monday night in the fourth inning after he slid into third base and pulled his muscle. He also turned 28 yesterday – and Gio Gonzalez, naturally, brought a birthday cake into the clubhouse for him.

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