Arellano was born in Santiago, Chile on 29 July 1901. His professional debut came aged 17 for Chilean football club Magallanes in 1919. In 1925 he along with other members parted from Magallanes football club to form a new club which came to be known in Chile as Colo-Colo. Arellano is attributed with showcasing the bicycle kick or in Chile and other parts of South America known as the Chilena through footballing tours that were conducted in Europe. Arellano played for the Chile national team that participated in the 1924 and 1926 editions of Copa America. In the latter, he was the top scorer, with 7 goals.