The field is now set for the Fourth Round of the 2017 U.S. Open Cup, and each of the US-based MLS clubs entering the tournament know their respective opponent.

While there will be three all-MLS games in the fourth round, including an all-New York showdown and a Cascadia clash, the matches between MLS sides and lower division clubs includes the lone amateur team left in the field, Maryland-based side Christos FC, who will play D.C. United.

There are also several games featuring MLS teams playing former USL affiliates, including the New England Revolution hosting the Rochester Rhinos, Philadelphia Union playing the Harrisburg City Islanders, and Saint Louis FC hosting the Chicago Fire.

On top of that, one current MLS-USL partnership will turn competitive, as Atlanta United FC host the Charleston Battery.

FC Dallas, the reigning champions, will kick off their title defense with a home game against the USL's Tulsa Roughnecks.

You can find the full schedule for the fourth round below.