Sophus Erhard "Krølben" Nielsen (15 March 1888 – 6 August 1963) was a Danish amateur football player and manager, and the first player in history to score ten goals in a full national team match. Nielsen scored a total 16 goals in 20 games for the Denmark national team, and won silver medals at the 1908 and 1912 Summer Olympics. He was named Denmark national team manager in 1940, and he was a pioneer in educating Danish coaches. His nickname Krølben (literally: curl-leg) is slang for him being bandy-legged.
Club career
Born in Copenhagen, Sophus Nielsen started his senior career with local team Boldklubben Frem. He made his senior debut in October 1904. Nielsen played as centre forward and inside forward, and was a skilful player with tricky dribbles and shots, but also with a great heading ability. His bandy legs made it difficult for opponents to tackle the ball away from him. Sophus was the footballing idol of many Copenhagen youth players, including later Danish international team captain Pauli Jørgensen. With Frem, Sophus won the 1911 Baneklubberne Tournaments. Nielsen became quite the sensation among German football enthusiasts.
International career
Nielsen was called up to the first official Denmark national team selection, for the 1908 Summer Olympics. Nielsen scored one goal in Denmark's first ever national team game, as the France B team was defeated 9–0. On 22 October 1908, Denmark played France A and the Danes won 17–1. Nielsen scored a record ten goals; in the 3rd, 4th, 6th, 39th, 46th, 48th, 52nd, 64th, 66th, and 76th minute. Denmark went on to win the silver medal after they were defeated 2–0 by Great Britain in the final.
Nielsen's record was matched in the 1912 Olympics, as Germany's Gottfried Fuchs scored ten in a 16–0 win against Russia. It was not broken until 2001, when Australia's Archie Thompson scored 13 goals in a 31–0 defeat of American Samoa.
Nielsen went on to win another silver medal at the 1912 Summer Olympics, in which he scored two goals in three games, thus totalizing 13 Olympic goals, making him the all-time top goal scorer in Olympic Football history alongside Hungary's Antal Dunai (Dunai scored six in 1968 and seven in 1972). While playing for Holstein Kiel, Nielsen still represented Frem in the Danish national team. Following the 1912 Olympics, Nielsen played another 12 international games, scoring four goals. He ended his national team career in October 1919.
Coaching career
After his retirement, Sophus Nielsen coached the Frem youth team from 1924 to 1926, He made speeches and seminars around the country on coaching and training methods. His training was criticized as being too basic, by the young Knud Lundberg, who would later go on to captain the Danes at the 1948 Summer Olympics. However, Sophus Nielsen and Lundberg later became friends, and shared the same tactical outlook on the attacking game. Nielsen would have deployed the wingers in a more defensive role, while having two centre-forwards (anticipating the later 4–2–4 formation), but this was blocked by the rest of the Denmark national team committee.