Dominguez worked around a hit to record his seventh save of the year Friday, logging a scoreless inning in a 3-2 win over the Nationals.
The right-hander didn't strike out a batter but induced two groundouts and a flyout, erasing a two-out double by pinch hitter Daniel Murphy and preserving the one-run victory. Dominguez also wrapped things up Wednesday and Thursday, signalling that he's the Phillies' primary and possibly sole closer.