Nationals optioned RHP Drew Storen to Triple-A Syracuse.
Drew Storen pitched despite the flu Friday and gave up three runs in two-thirds of an inning.
Drew Storen is not expected to be available during Friday's doubleheader due to the flu.
Drew Storen recorded his second save of the season Friday with a perfect ninth inning against the Mets.
Despite taking a comebacker off his pitching hand, Drew Storen pitched a scoreless 10th inning Friday against the Padres for his first save.
Drew Storen allowed a run in the eighth inning Sunday, blowing the Nationals' 1-0 lead over the Cubs.
Drew Storen blew a save in Friday's extra-inning loss to the Braves.
With Rafael Soriano having pitched three days in a row, Drew Storen would be used as the Nationals' closer Friday if a save situation arises.
Drew Storen admitted on Saturday that he was "caught off guard" when he heard that the Nationals had signed closer Rafael Soriano.
Nationals and RHP Drew Storen avoided arbitration by agreeing to a one-year, $2.5 million contract.
Drew Storen is one of six players to have qualified for Super Two arbitration status.
Drew Storen imploded in the ninth inning on Friday, surrendering four runs on three hits and two walks in his lone inning of work.
Nationals manager Davey Johnson said Monday that he'll go with Drew Storen in the ninth inning for now.
Drew Storen has registered a 3.26 ERA and 1.19 WHIP through 19 1/3 innings this season.