CREATE TABLE table_77446 ("Game" CLOB, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Dolphins' points" CLOB, "Opponents' Points" CLOB, "Record" CLOB, "Streak" CLOB, "Attendance" CLOB)

Which opponent had 73,428 in attendance?
SELECT "Opponent" FROM table_77446 WHERE "Attendance" = '73,428'
SELECT "Opponent" FROM "table_77446" WHERE "Attendance" = '73,428'