Ross Detwiler earned his first career save in the Nationals' defeat of the Cubs on Saturday.
Nationals manager Matt Williams said Monday that Ross Detwiler will begin the season in the bullpen.
Ross Detwiler is scheduled to throw one inning in Wednesday's game, with Taylor Jordan getting the start.
Ross Detwiler turned in an improved outing Thursday, allowing one run over 3 2/3 innings against the Mets.
Ross Detwiler allowed one run and six hits in two-plus innings Saturday against the Braves.
Ross Detwiler was charged with four runs -- three earned -- in 1 1/3 innings Monday against the Yankees.
Bill Ladson of MLB.com reports that Ross Detwiler has added a cutter to his repertoire this offseason.
Ross Detwiler is comfortable with the idea of competing for the No. 5 rotation spot this spring.
Nationals avoided arbitration with LHP Ross Detwiler by agreeing to a one-year, $3 million contract.
Ross Detwiler (back) said he has felt "100 percent" since pitching in the instructional league in September.
Nationals general manager Mike Rizzo indicated Tuesday that Ross Detwiler is not assured of a rotation spot.
Nationals general manager Mike Rizzo indicated that Ross Detwiler could be used out of the bullpen in 2014.
Nationals activated LHP Ross Detwiler from the 60-day disabled list.
Ross Detwiler is not going to participate in winter ball.