Souza (shoulder) was activated from the 15-day DL on Monday. A left shoulder contusion cost Souza 20 games, but he'll return Monday to occupy a spot on the Nats' expanded September roster. The 25-year-old led the International League in all three triple-slash categories (.350/.432/.590), smacked 18 homers and swiped 26 bags in 96 games with Syracuse en route to leave MVP honors. He'll soon get a chance to improve upon his 1-for-12 mark with the big club, though he'll likely be deployed primarily off the bench, barring injury to one of the team's starting outfielders.