Name the number of opponent with arrowhead stadium
CREATE TABLE table_13258823_2 (opponent VARCHAR, game_site VARCHAR)
SELECT COUNT(opponent) FROM table_13258823_2 WHERE game_site = "Arrowhead Stadium"
### Context: CREATE TABLE table_13258823_2 (opponent VARCHAR, game_site VARCHAR) ### Question: Name the number of opponent with arrowhead stadium ### Answer: SELECT COUNT(opponent) FROM table_13258823_2 WHERE game_site = "Arrowhead Stadium"