With Danny Espinosa shifted to shortstop in Desmond’s place and Steve Lombardozzi now the regular second baseman, the Nationals will continue to use a platoon system for their third outfielder before Jayson Werth returns. Roger Bernadina will not play center field against right-handed starts, and Tyler Moore will play left against lefties.

“It’s basically going to be a platoon situation, kind of like I was with Lombo,” Johnson said. “This is a more natural platoon. You don’t really see a platoon with a switch-hitter. I like the lineup with Desmond hitting sixth. I can’t have afford to not have a run-producer with Desmond out.”

Brown, 26, is joining the Nationals for his third stint. He appeared in three games as a call-up last September before he suffered an infection in his knee. Earlier this year, Brown replaced Chad Tracy for three games and recorded his first career RBI on a suicide squeeze bunt.