user: Question: Score of 2-1, and a Competition of PL, and a Date of December 22, 2006 had what opponents?
Columns: ['Date', 'Venue', 'Opponents', 'Score', 'Competition']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['December 22, 2006', 'Tuanku Abdul Rahman Stadium, Paroi', 'Plus FC', '2-1', 'PL']
SQL:

assistant: SELECT "Opponents" FROM "Table" WHERE "Score" = '2-1' AND "Competition" = 'PL' AND "Date" = 'December 22, 2006';