The Leicester City defender is unsure how the concept works, insisting that manager Gareth Southgate had to study the permutations closely
Harry Maguire admits he does not understand the UEFA Nations League concept and does not believe that his team-mates do either.
England face Spain this weekend and are included in League A, comprising the top 12 European teams. These 12 teams are split into four different groups, with World Cup finalists Croatia making up the Three Lions' group.
League B includes the likes of Wales, Russia and Northern Ireland, League C has the likes of Scotland, Greece and Norway, while League D features the lowest-ranked teams, including Gibraltar, Kosovo and Malta.