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_84 ( round INTEGER, position VARCHAR, pick VARCHAR )

### Question ###
What is the lowest round for the player whose position is guard and had a pick number smaller than 144?

### Accurate SQL ###

SELECT MIN(round) FROM table_name_84 WHERE position = "guard" AND pick < 144