What was the highest number of oppenents points recorded for game 9 when the attendance was less than 60,091?
CREATE TABLE "schedule" (
  "game" real,
  "date" text,
  "opponent" text,
  "result" text,
  "eagles_points" real,
  "opponents" real,
  "record" text,
  "attendance" real
);
SELECT MAX("opponents") FROM "schedule" WHERE "game"=9 AND "attendance"<'60,091';