Nationals manager Davey Johnson said Thursday that Chris Marrero had a setback with his shoulder.
Marrero was already rehabbing a torn left hamstring, but the shoulder injury means he might not be ready to play again for another month or two. The 23-year-old batted .248/.274/.294 with five doubles and 10 RBI in 117 plate appearances for the Nationals down the stretch last season.
Source: twitter.com