To clear room, the Nationals outrighted Ryan Mattheus and Pedro Florimon was claimed off waivers by the Pirates.
The Nationals plan to promote A.J. Cole, one of their best prospects, to Class AAA Syracuse in the coming days.
The Nationals will invite 18 players not on the 40-man roster to big league camp.
Thrilled to be at the Futures Game, confident Nationals starter A.J. Cole finished off Team USA's victory.
The right-handed will replace Taylor Jordan in the showcase event.
The Nationals welcomed back a $2 million arm when they received Cole as the key part of their return in the Morse deal.