What is Spain national under-21 football team?
{{Infobox national football team||socks2=F6FBFF <!--End of Shirt-->|pattern_b2=_esp20a|pattern_ra2=_esp20a|pattern_sh2=_esp20a|pattern_so2=_esp20a|leftarm2=F6FBFF|body2=F6FBFF|rightarm2=F6FBFF|shorts2=F6FBFF|First game={{fbu|21|YUG}} 4–1 {{fbu-rt|21|ESP|1945}}<br>([[Zagreb]], [[Yugoslavia]]; 9 October 1976)|socks1=020053 <!--Away Shirt-->|Largest win={{fbu|21|ESP}} 14–0 {{fbu-rt|21|SMR|1862}}<br>([[El Ejido]], [[Spain]]; 8 February 2005)|Largest loss={{fbu|21|NED}} 5–0 {{fbu-rt|21|ESP}}<br>([[Utrecht]], [[Netherlands]]; 16 February 1983) <center>''Records for competitive matches only.''</center>|UEFAu21Champ apps=13|UEFAu21Champ first=[[1982 UEFA European Under-21 Championship|1982]]|UEFAu21Champ best=Winners ([[1986 UEFA European Under-21 Championship|1986]], [[1998 UEFA European Under-21 Championship|1998]], [[2011 UEFA European Under-21 Championship|2011]], [[2013 UEFA European Under-21 Championship|2013]], [[2019 UEFA European Under-21 Championship|2019]])|Regional name=|Regional cup apps=|Regional cup first=|Regional cup best=|pattern_la2=_esp20a|shorts1=020053||Most caps=[[Gerard Deulofeu]] (36)|Name=Spain Under-21|Nickname=''{{lang|es|La Rojita}}'' (The Little Red [One])|Badge=|Badge_size=150px|Association=[[Royal Spanish Football Federation]]|Sub-confederation=|Confederation=[[UEFA]] ([[Europe]])|Coach=[[Luis de la Fuente Castillo|Luis de la Fuente]]|Captain=[[Marc Cucurella]]|Top scorer=[[Gerard Deulofeu]] (17)|rightarm1=E00000|Home Stadium=|FIFA Trigramme=ESP <!--Home Shirt-->|pattern_la1=_esp20h|pattern_b1=_esp20h|pattern_ra1=_esp20h|pattern_sh1=_esp20h|pattern_so1=_esp20h|leftarm1=E00000|body1=E00000|medaltemplates={{MedalTableTop}} {{MedalSport | U-21 [[UEFA European Under-21 Championship|European Championship]]}} {{MedalGold | [[1986 UEFA European Under-21 Championship|1986]] | Team}} {{MedalGold | [[1998 UEFA European Under-21 Championship|1998 Romania]] | [[1998 UEFA European Under-21 Championship squads#Spain|Team]]}} {{MedalGold | [[2011 UEFA European Under-21 Championship|2011 Denmark]] | [[20