The flexibility on Span could be related to a potential corresponding move, and it was reported here that the Nationals were one of many teams interested in free-agent center fielder Jacoby Ellsbury.
Span was acquired a year ago from the Twins for top pitching prospect Alex Meyer when folks figured the Nats might go for a free-agent center fielder such as Michael Bourn. The Nationals wound up having a disappointing season.
Span had a decent season, though not spectacular. He hit .279 with four home runs and 75 runs scored. He did have a league-leading 11 triples.