user: Question: What date has 3 as the round (leg)?
Columns: ['Round (Leg)', 'Date', 'Opponent', 'Venue', 'Result', 'Attendance']
Types: ['text', 'text', 'text', 'text', 'text', 'real']
Sample row: ['2 (1)', '22 September 1987', 'Fulham', 'Away', '5–1', 4357.0]
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Round (Leg)" = '3';