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_7766 ( "Date" text, "Tournament" text, "Surface" text, "Opponent in final" text, "Score in final" text )

### Question ###
Who is the opponent in the final of the tournament on May 22, 2006?

### Accurate SQL ###

SELECT "Opponent in final" FROM table_7766 WHERE "Date" = 'may 22, 2006'