Behind two early runs and some stellar pitching, the Nationals beat the Marlins 2-1 on Tuesday and drew to within 7 games of the NL's final playoff berth.
A few early runs appeared to signal the start of a big offensive night for the Nats, but the production dried up. Regardless, Washington still notched a win over Miami, 2-1.
The Nationals swapped relievers before Tuesday night's game, recalling right-hander Ryan Mattheus from Class AAA and optioning lefty Xavier Cedeno back to Syracuse.
Ross Detwiler, out since July 4 with a strained lower back, hasn't started throwing off a mound yet and has probably run out of time to make it back to the Nationals rotation this season.