CREATE TABLE table_47851 ("Week" FLOAT, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Attendance" CLOB)

What is Opponent, when Attendance is 62,170?
SELECT "Opponent" FROM table_47851 WHERE "Attendance" = '62,170'
SELECT "Opponent" FROM "table_47851" WHERE "Attendance" = '62,170'