Reliever Marco Estrada, who replaced starter Matt Garza after one-third of an inning, fielded the ball and flipped to catcher Jonathan Lucroy with his glove. Desmond attempted to slide around Lucroy, but the catcher successfully executed the tag to prevent a sixth run from scoring.
Nationals manager Matt Williams jogged onto the field and raised a question about whether Lucroy was in violation of Rule 7.13, which dictates that a catcher cannot block the plate without the ball. Miller and the rest of his crew went to the replay and confirmed the call for the second out of the inning.
Daniel Popper is an associate reporter for MLB.com. He also can be found on Twitter @danielrpopper. This story was not subject to the approval of Major League Baseball or its clubs.