All of the European nations will be competing in the newly created UEFA Nations League, which will take place between now and November, while the non-European squads will be competing in their own respective friendlies and qualifiers.
ARGENTINA: Fit-again Sergio Romero will be United's sole representative from Argentina, as Marcos Rojo continues to be hampered with a knock that the defender suffered during the World Cup. The South American nation will contest their two friendlies in the United States as they face Guatemala in California before travelling east to face Colombia in New Jersey.
BELGIUM: Marouane Fellaini and Romelu Lukaku have again been selected for the Belgium squad by Roberto Martinez.