The Nationals will monitor Jayson Werth, Denard Span, Nate McLouth and Brian Goodwin in camp, all returning from surgery.
For the second straight season, Baseball American puts Lucas Giolito at the top of its rankings of Nationals' prospects.
To clear room, the Nationals outrighted Ryan Mattheus and Pedro Florimon was claimed off waivers by the Pirates.
The Nationals will invite 18 players not on the 40-man roster to big league camp.
Eight Nats minor leaguers were selected to play in the Arizona Fall League, which features many of the best prospects in baseball.
Three Nationals landed on the industry leader's top 100 list.
Beginning today, we will examine the top 10 prospects in the Nationals farm system. We start with the top two position players: infielder Rendon and outfielder Goodwin.
Brian Goodwin was named the Arizona Fall League player of the week, continuing a strong showing that could bolster the his chances of competing for a spot on the Nationals’ 2013 opening day roster.