{{country data {{{2}}} | flagicon/nt | variant = | size = | altlink = national under-{{{1}}} football team | altvar = football | age = under-{{{1}}}
}}
{{fbuicon|age|nation|variant|size=optional}}
Produces a flag icon (only) wikilinked national under-NN (e.g. under-20, under-21, etc.) football team article.
{{fbuicon|21|Netherlands}}
→
{{fbuicon|20|Brazil}}
→
{{fbuicon|21|ENG}}
→
{{fbuicon|20|COL}}
→
{{fbuicon|21|Romania|1965}}
→