class MetacriticIE(InfoExtractor):
- _VALID_URL = r'https?://www\.metacritic\.com/.+?/trailers/(?P<id>\d+)'
+ _VALID_URL = r'https?://(?:www\.)?metacritic\.com/.+?/trailers/(?P<id>\d+)'
_TESTS = [{
'url': 'http://www.metacritic.com/game/playstation-4/infamous-second-son/trailers/3698222',