^Church was born in High Wycombe, England, but also qualified to represent Wales through his grandparents and represented them at U-21 level before making his international debut for Wales in May 2009.
^Harriott was born in Croydon, England, and represented them at U-19 level, but also qualified to represent Guyana and Jamaica internationally and would make his international debut for Guyana in March 2019.
^Wiggins was born in Hillingdon, England, but also qualified to represent Wales internationally and represented them at U-17, U-19, and U-21 level.
^Thuram-Ulien was born in Courcouronnes (now Évry-Courcouronnes), France, and represented them at U-20 and U-21 level, but also qualified to represent Guadeloupe internationally through his parents and was called up by Guadeloupe in March 2009 before making his international debut for them in 2016.
^Koç was born in Saint-Josse-ten-Noode, Belgium, and represented them at U-15 and U-16 level, but also qualified to represent Turkey internationally and represented them at U-17 and U-19 level.
^Cort was born in Southwark, England, but also qualified to represent Guyana internationally and made his international debut for Guyana in 2010.
^Fox was born in Chelmsford, England, but also qualified to represent Wales internationally and represented them at U-21 level.
^Poyet was born in Zaragoza, Spain, but was raised in England from the age of 2 and also qualified to represent Uruguay internationally through his father. He represented England at U-16 and U-17 level and would go on to represent Uruguay at U-20 level.
^Daniel was born in Lambeth, England, but also qualified to represent Guyana internationally and represented them at U-23 level before making his international debut for Guyana in June 2015.
^Ajdarević was born in Pristina, Yugoslavia (now part of Kosovo), but was raised in Sweden from the age of 2 and also qualified to represent Albania internationally through his parents. He represented Sweden at U-17, U-19, U-21, and U-23 level before making his international debut for Albania in November 2017.