Capped three times by England, Knight was called up to play fullback in the 1972 Five Nations, with the team looking for a successor to Bob Hiller.[3] He featured in two of the matches and later took part in the mid-year tour of South Africa, where he played as a winger in the win over the Springboks at Ellis Park.[4]
Knight, who became a priest, played for Bristol and Gloucestershire.[5]