Martinez is an 18-year old Dominican outfielder who the Nats just added in a trade with the New York Yankees. They sent out Amed Rosario for a pitcher, Clayton Beeter, along with Martinez. Beeter can contribute at the MLB level a bit in the near term, but Martinez is the long-term excitement here.

Washington optioned Beeter to Triple-A Rochester after acquiring him in a trade with the Yankees on Saturday, Andrew Golden of The Washington Post reports.

The New York Yankees remain active before the July 31 trade deadline, as YES Network's Jack Curry has reported that the club is acquiring infielder Amed Rosario

The struggling New York Yankees made a bold move to bolster their infield depth on Saturday night, acquiring Amed Rosario from the Washington Nationals in exchange for pitcher Clayton Beeter and 19-year-old prospect Browm Martinez.