Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_66332 ( "Res." text, "Record" text, "Opponent" text, "Method" text, "Event" text, "Round" real, "Time" text, "Location" text )

### Question ###
Who was the fight against when loss was the result at the Gladiator Challenge 87: Collision Course event?

### Accurate SQL ###

SELECT "Opponent" FROM table_66332 WHERE "Res." = 'loss' AND "Event" = 'gladiator challenge 87: collision course'