CREATE TABLE table_45650 ("Game" FLOAT, "Date" TEXT, "Opponent" TEXT, "Score" TEXT, "High points" TEXT, "High rebounds" TEXT, "High assists" TEXT, "Location/Attendance" TEXT, "Record" TEXT)

What is Opponent, when High Rebounds is 'Pierson (6)'?
SELECT "Opponent" FROM table_45650 WHERE "High rebounds" = 'pierson (6)'
SELECT "Opponent" FROM "table_45650" WHERE "High rebounds" = 'pierson (6)'