Arnold Sedgfield "Saturday" Knight (16 December 1885 - 1 July 1946) was a South African international rugby union player.
Knight, who played his club rugby with the Pirates, represented Transvaal in provincial fixtures.
[1] He was a member of the South African side which toured the British Isles, France and Ireland in 1912/13.
A forward, he appeared in all five Test matches, making his debut against Scotland and then playing Ireland, Wales, England and France.
This biographical article related to a South African cricket person born in the 1880s is a stub.