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_2840500_6 (college_junior_club_team VARCHAR, nationality VARCHAR)

### Question ###
How many college teams have a player with a nationality of Russia?

### Accurate SQL ###

SELECT COUNT(college_junior_club_team) FROM table_2840500_6 WHERE nationality = "Russia"