Eddi Tagseth

Eddi Tagseth

 Photo: MLS

Still in contention for three championship trophies this season, Nashville SC will try to take a big step toward securing one of them Tuesday night at Geodis Park.

That’s when NSC will play host to the Philadelphia Union in a U.S. Open Cup semifinal, with the winner advancing to the final — against either Minnesota United or Austin FC — on Oct. 1.