Obi Martin scored a hat-trick in his first start for the U18s against Southampton, while still 15, and made his U21 debut the following month.
The forward was born in Denmark and played there for local side Kjøbenhavns Boldklub before moving to England as a teenager and joining the Arsenal academy at 14.
He has since been at the centre of a tug-of-war between his country of birth and his adopted homeland, having played for both at youth level.
He played for England U16s twice in February last year but two months later represented their Danish counterparts.
The Football Association had been exploring ways of luring him back but he went on to help Denmark qualify for this summer’s European Under-17 Championship, scoring three times on the way.
He is also eligible to represent Nigeria through his father.
Denmark U17 coach Jesper Mikkelsen told Danish press in November: “Chido and his family have agreed that he would like to play for Denmark. If he chooses to do it differently at some point, it’s kind of out of our hands.”
