The former left-handed long reliever inks a deal with a new team.
The Nationals released Zach Duke, but Henry Rodriguez's status remains unresolved.
The Nats make sweeping changes to their roster, including shipping out two relievers and sending Espinosa to the DL.
Nationals left-handed reliever Duke will replace Ross Detwiler on Monday in San Francisco
It's early, but let's jump into our year-to-date PITCHf/x numbers.