What was the tie number when the away team was Wrexham?
CREATE TABLE table_name_91 (tie_no VARCHAR, away_team VARCHAR)
SELECT tie_no FROM table_name_91 WHERE away_team = "wrexham"
### Context: CREATE TABLE table_name_91 (tie_no VARCHAR, away_team VARCHAR) ### Question: What was the tie number when the away team was Wrexham? ### Answer: SELECT tie_no FROM table_name_91 WHERE away_team = "wrexham"