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_203_8 ( id number, "player" text, "rec." number, "yards" number, "avg." number, "td's" number, "long" number )

### Question ###
what is the difference in yards averaged between cecil moore and raymond philyaw ?

### Accurate SQL ###

SELECT (SELECT "yards" FROM table_203_8 WHERE "player" = 'cecil moore') - (SELECT "yards" FROM table_203_8 WHERE "player" = 'raymond philyaw')