Ross (shoulder) has been pulled from his rehab assingment due to shoulder soreness, CSN Mid-Atlantic's Chase Hughes reports.

EDGE Analysis

This is a big blow to the Nationals and those who were hoping Ross would help their fantasy teams in the near future. He will be shut down for now to see if rest can alleviate the soreness, but it's certainly not a lock that he will return for the Nationals this season. In the meantime, Washington can go with a four-man rotation until Aug. 16, at which point Lucas Giolito or Reynaldo Lopez could be recalled to step into the rotation. The Nationals could also opt to bring someone up from Triple-A sooner than that date if they want to give their core four starters a bit of a breather.