CREATE TABLE table_66332 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Event" TEXT, "Round" FLOAT, "Time" TEXT, "Location" TEXT)

Who was the fight against when loss was the result at the Gladiator Challenge 87: Collision Course event?
SELECT "Opponent" FROM table_66332 WHERE "Res." = 'loss' AND "Event" = 'gladiator challenge 87: collision course'
SELECT "Opponent" FROM "table_66332" WHERE "Event" = 'gladiator challenge 87: collision course' AND "Res." = 'loss'