Actually all the ppl in the pic are rooting for Paraguay and not Uruguay. She is lingerie model and her name is Larissa Riquelme. Just gotta say that soccer may not be popular in the US but soccer has the hottest female fans worldwide.
Larissa Riquelme is the nip-slip chick on the left. The World Cup usually brings out the hot chicks since most of them are groupies trying to "score" with a famous/wealthy soccer player but what's new about that lol.