Table schema:
CREATE TABLE table_name_25 (losses INTEGER, club VARCHAR, draws VARCHAR, goals_against VARCHAR, goal_difference VARCHAR)

Question: What losses did racing de santander, that scored less than 68 goals, had a goal difference of less than 23 and 10 draws?
SQL: SELECT MAX(losses) FROM table_name_25 WHERE goals_against < 68 AND goal_difference < 23 AND draws = 10 AND club = "racing de santander"