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_name_46 ( overall INTEGER, round VARCHAR, college VARCHAR, position VARCHAR )

### Question ###
Which Overall has a College of michigan state, a Position of fb, and a Round larger than 8?

### Accurate SQL ###

SELECT SUM(overall) FROM table_name_46 WHERE college = "michigan state" AND position = "fb" AND round > 8