Table schema:
CREATE TABLE table_name_49 (points INTEGER, driver VARCHAR, average_pre_2010 VARCHAR)

Question: What is the lowest amount of points driver Romain Grosjean, who has an average pre-2010 less than 0, has?
SQL: SELECT MIN(points) FROM table_name_49 WHERE driver = "romain grosjean" AND average_pre_2010 < 0