Sites on Opera

[land2634]

So this has most likely been posted somewhere, but I am unable to find it (mainly because I don't know what a good search term would be in the situation), and I am also sure others would like to know. On Opera Mobile, I have been to several sites (ESPN mainly) where it automatically takes me to their mobile site. I have seen sites before that allow you to go to the regular site if they want, but in this case didn't see that option. How can I keep these sites from recognizing me as a mobile device so that I can see the full desktop site?