The Nationals officially exercised Span's $9-million team option on Thursday.
The Nationals' former-closer-turned-setup man still wants to close in the future, and hopes to play another three or four years.
The Nationals could choose the last reliever in their bullpen based on their NLDS match-up.
Reliever Rafael Soriano got his first save chance since he was removed from the closer's role and gave up a run.
Rafael Soriano is confident he'll be ready for the playoffs.
The reliever says he is happy the team is winning and will do what is asked in his current role.
Rafael Soriano threw a scoreless inning as he adjusted to a new role in the Nationals bullpen.
Nationals Manager Matt Williams says Rafael Soriano is willing to pitch in whatever inning he is asked to.
The reliever threw a good bullpen session, according to Williams, and could soon return to games, perhaps lower-leverage innings.
Rafael Soriano will take time off to recapture his mechanics, and Matt Williams could choose his closer based on match-ups.