Nationals' Victor Robles: Might not return this year

Manager Dave Martinez said Friday that it is "going to be hard" for Robles (back) to return this season, Andrew Golden of The Washington Post reports.

Robles has been on the injured list since late June due to a lingering back injury and is rapidly running out of time to rejoin the Nationals. The 26-year-old outfielder has appeared in only 36 major-league games this season.