Arnold Watson Hutton, known as "Arnoldo" in Argentina, was the son of Alexander Watson Hutton, a Scotsman known as the father of Argentine football for his role in founding the Argentine Football Association and the Alumni A.C.[2] Arnold shared his father's keen interest in sports and made his debut for Alumni on 14 April 1902 at the age of 15.[3]
As a teenager, Watson Hutton travelled to Europe, studying in Scotland and Germany. When he returned to Argentina he was part of the Alumni team that won the Primera División championship in 1906, and he made his debut for the Argentina national team in a Copa Newton match against Uruguay at Sociedad Sportiva. He scored the first goal for the 2–1 victory in a game attended by over 5,000.[4]
Watson Hutton went on to play 17 times for the national side, scoring six goals and winning two international tournaments.[5] In 1910 he was the top scorer in the Argentine league with 13 goals.
He played for Alumni until the club were disbanded in 1911.[6] After the dissolution of Alumni, Watson Hutton moved to rival Belgrano where he continued his career until his retirement from football two years later.[7]