user: Question: Which opponent had 73,428 in attendance?
Columns: ['Game', 'Date', 'Opponent', 'Result', "Dolphins' points", "Opponents' Points", 'Record', 'Streak', 'Attendance']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['1', '09/09/01', 'at Tennessee Titans', 'W', '31', '23', '1–0', 'W-1', '68,798']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Attendance" = '73,428';