Never knew any Portuguese that don't speak English, most of the midgame "info's" are even in English.
Sometimes I play half a game speaking English with my mates, only to find out we're all Portuguese later on.
There is a huge difference between Portugal and Spain, so if by chance you find yourself with Spanish mates it's possible, that none of them speak English. This is because they do dubbing to everything, movies, tv shows, etc. In Portugal we never do that, no matter the language, we only add subtitles.