“I’m looking forward to it,” Johnson said. “I’ve been feeling a little outnumbered here lately. I’m looking forward to seeing these young guys and I know there’s going to be a swarm of them. I’ll have to have a big staff meeting, go over a lot of reports and see what we’re going to do.”

The Nationals are expected to call up infielder Stephen Lombardozzi, outfielder Corey Brown, left-handed reliever Atahualpa Severino and right-handed pitchers Brad Peacock, Craig Stammen, Rafael Martin and Yuensky Maya

Lombardozzi and Peacock are not on the 40-man roster. In adding them while also transferring Stephen Strasburg off the 60-day disabled list, the Nationals will need to clear three spots on the 40-man roster. They will be able to clear one by transferring reliever Cole Kimball to the 60-day disabled list.

The Nationals will be able evaluate the players while also getting them used to the majors. Peacock, the Class AA Eastern League pitcher of the year, could compete for a starting spot next season. He will start out by pitching from the bullpen, and the Nationals could give him a start late in the season.

For Johnson, the new players will give him a deeper bullpen and more flexibility in late-game situations with pinch-hitters and defensive replacements.

“It gives you a lot more matchups in the ballgame,” Johnson said. It helps a little more in the bullpen, especially when someone has a rough outing.”