sports – a subject that provides men, who can’t otherwise communicate, something to talk about. (from the subtlecynic’s dictionary)
Why do sports fans, generally but not always men, on the day after the “big” game make conversation with the pronoun ‘we’ inserted in their comments? “did you see when we scored?”, “we screwed up on defense”, “we played a great first half” (we-we-we) I want to ask them – “When you say ‘we’ what number was on your jersey?” or “I didn’t know you made the team.”
Unless you were on the playing field, court or track don’t insert yourself into a situation where you were a spectator (probably in front of a television) and not a participant.