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The final international window closed last week, and it ended with a whimper for the U.S. men's national team after dropping two friendlies. They lost 2-1 to Colombia before a lackluster 4-1 defeat against Ireland.

Jurgen Klinsmann's recent team selection has been odd, to say the least. Calling up veterans such as Kyle Beckerman and Matt Besler is counter-productive, since they'll be stalwarts for the USMNT for awhile.

There are several players in MLS that can fill voids in Klinsmann's squad. The names in this slideshow address a positional issue with the team, provide experience and/or depth in certain positions. They also have to be under the age of 30 or they would not be realistic options for the 2018 World Cup.

Here are 12 players that Klinsmann could add to his team in future friendlies and tournaments.