query: PREFIX p: <http://www.wikidata.org/prop/>
  PREFIX v: <http://www.wikidata.org/prop/statement/>
  PREFIX pq: <http://www.wikidata.org/prop/qualifier/>
  
  SELECT ?countryLabel ?player ?playerLabel ?number ?positionLabel ?birth WHERE {
    ?team wdt:P31 wd:Q24199684 .
    ?team p:P710 ?playerSet . ?playerSet v:P710 ?player .
    ?playerSet pq:P413 ?position FILTER(?position = wd:Q715772)
    OPTIONAL{?playerSet pq:P1618 ?number}
    OPTIONAL{?player wdt:P569 ?birth}
    ?team wdt:P31 ?nationalTeam . ?nationalTeam wdt:P31 wd:Q6979593 . ?nationalTeam wdt:P1532 ?country
    SERVICE wikibase:label{bd:serviceParam wikibase:language "en,de"}
  }
  ORDER BY ?countryLabel ASC(xsd:integer(?number))