user: Question: Tell me the opponents for Mashona Washington November 21, 2009
Columns: ['Outcome', 'Date', 'Tournament', 'Surface', 'Partner', 'Opponents', 'Score']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Winner', 'November 11, 2007', 'Toronto , Canada', 'Hard (i)', 'Gabriela Dabrowski', 'Maria Fernanda Alves Christina Wheeler', '6–3, 6–0']
SQL:

assistant: SELECT "Opponents" FROM "Table" WHERE "Partner" = 'Mashona Washington' AND "Date" = 'November 21, 2009';