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_28138035_26 (mens_singles VARCHAR, womens_singles VARCHAR)

### Question ###
Who won the mens singles when lau sui fei won the womens singles?

### Accurate SQL ###

SELECT mens_singles FROM table_28138035_26 WHERE womens_singles = "Lau Sui Fei"