CREATE TABLE table_63166 ("Game" TEXT, "Date" TEXT, "Opponent" TEXT, "Score" TEXT, "Location/Attendance" TEXT, "Record" TEXT)

Who was the opponent at the game at Madison Square Garden?
SELECT "Opponent" FROM table_63166 WHERE "Location/Attendance" = 'madison square garden'
SELECT "Opponent" FROM "table_63166" WHERE "Location/Attendance" = 'madison square garden'