user: Question: How many opponents were there in a game higher than 20 on January 28?
Columns: ['Game', 'Date', 'Opponent', 'Result', 'Nets points', 'Opponents', 'Record', 'Streak']
Types: ['real', 'text', 'text', 'text', 'real', 'real', 'text', 'text']
Sample row: [1.0, 'November 2', '@ Charlotte', 'Win', 116.0, 118.0, '1-0', 'Won 1']
SQL:

assistant: SELECT "Opponents" FROM "Table" WHERE "Game" > 20.0 AND "Date" = 'January 28';