user: Question: Who was the opponent on the game on April 14, 2007?
Columns: ['Date', 'Opponent', 'Result', 'Game Site', 'Attendance']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['April 8, 2007', 'Los Angeles Galaxy', 'T, 0-0', 'Robertson Stadium', '16,404']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Date" = 'April 14, 2007';