Who was the away team against the home team Sheffield United?
CREATE TABLE table_name_18 (away_team VARCHAR, home_team VARCHAR)
SELECT away_team FROM table_name_18 WHERE home_team = "sheffield united"
### Context: CREATE TABLE table_name_18 (away_team VARCHAR, home_team VARCHAR) ### Question: Who was the away team against the home team Sheffield United? ### Answer: SELECT away_team FROM table_name_18 WHERE home_team = "sheffield united"