SELECT MIN(points) FROM table_name_49 WHERE driver = "romain grosjean" AND average_pre_2010 < 0
Berapa jumlah poin terendah yang dimiliki Romain Grosjean, yang memiliki rata-rata pra-2010 kurang dari 0,?
CREATE TABLE table_name_49 (points INTEGER, driver VARCHAR, average_pre_2010 VARCHAR)