Conversation so far:
When did Bobby Robson's club playing career begin?
In 1950, Robson made his first-team debut for Fulham, recently promoted to the First Division, in a match against Sheffield.
What teams did he play against during his club playing years?
He made his West Brom debut in a 4-0 home defeat to Manchester City on 10 March 1956.

Question: What other teams did he play against after 1956?
Self-contained rewrite: What other teams did Bobby Robson play against after 1956 other than Sheffield?