With the European season concluded, impact on the US Open Cup by players being called up by the US National Team will be minimal over the next two rounds as only four Major League Soccer sides will be missing five combined players.
Jurgen Klinsmann's 23-player selection for the current five-match run that includes three friendlies and a pair of 2014 World Cup Qualifiers was made up primarily of players outside of MLS.
Nick Rimando (Real Salt Lake)
Geoff Cameron (Houston Dynamo)
Kyle Beckerman (Real Salt Lake)
Landon Donovan (LA Galaxy)
Chris Wondolowski (San Jose Earthquakes)
Real Salt Lake could be the most affected, though it is possible Rimando will remain with the club, as has been done previously, and brought in if an injury occurs.
Following the 5-1 drubbing of Scotland Saturday, the US men now face Brazil in DC Wednesday before heading north of the border to play Canada June 3 in Toronto for the final friendly.
The team then heads to tropical weather for the first 2014 World Cup Qualifier, facing Antigua & Barbuda on June 8 in Tampa and visit Guatemala June 12.