Arrgghhh!! I wrote a big long rant then lost is when Mumsnet went offline
In the UK especially girls are conditioned from an early age that sport=football=something boys do.
There are lots of threads on Mumsnet about sport. However, they are not about sport on the telly because sport on the telly is about the boys. The mumsnet threads are about women participating in sport.
I challenge you to take a long hard look at the sports you support. Do women play them too? If so, why aren't they mentioned in the press? This is especially worth looking at if the women's team do better than the mens on the international stage. (e.g. cricket, football, rowing, swimming, iornman, kyaking, hockey, long distance running, gymnastics) Why are the world champions ignored in favour of the third rate men? What makes them more newsworthy? Why do the news media think it's OK to only celebrate the third rate and not the first rate? Why was Amir Khan, who didn't win a single bought this year nominated for sports personality of the year when Chrissie Wellington, who regularly beats men at the ironman world championships ignored? What about Rebecca Adlington, Victoria Pendalton (who seems to need to get her kit off to be noticed) and Jessica Ennis ignored?
I genuinely enjoy sport. I play, and have played many sports in my times, some of them male dominated (I was a nifty rugby player in my youth). However, I prefer to follow the really high level stuff, the world champions and the teams that are really good at what they do. Like so many women I have no time for the third rate, the endless conversations about which overpaid footballer is guilyt/not guilty of violence or going to transfer to another overpaid position.
The media and the sports establishment make it very clear they are not interested in me as a fan. Just look at the barely disguised sneer when the offside rule is mentioned. It's not like it is difficult to understand but it's always mentioned in terms of somthing that our fluffy little girly brains wouldn't understand. And look at the big conversations about women in sport in the media this year. There was the BBC Sports Personality Man of the year, there was the Badmington conversation about sexing up the women's uniforms to get more TV coverage and there was the Boxing Federation wanting women to wear skirts so the poor judges would be able to tell they were women. "More Elegant" I think was the phrase 
I get the message loud and clear from the media. Sport, important sport, sport worth mentioning in the media, sport worth "following" and sport with fans is synonomous with having a penis. I simply can't be bothered with that.