CREATE TABLE table_25504 ("Game" FLOAT, "Date" TEXT, "Team" TEXT, "Score" TEXT, "High points" TEXT, "High rebounds" TEXT, "High assists" TEXT, "Location Attendance" TEXT, "Record" TEXT)

Who was he opponent on december 11?
SELECT "Team" FROM table_25504 WHERE "Date" = 'December 11'
SELECT "Team" FROM "table_25504" WHERE "Date" = 'December 11'