I have to say, personally I thought the majority of Sporting fans were brilliant (apart from the group at the front of the first tier who just wanted to fight and a couple of other idiots spread about). 5-0 down and sang the whole way through.
We were just to the right of them on the second tier, there was one fan in particular who kept waving a Chelsea scarf and kept shouting 'Champions of Europe, you'll never sing that' idiot.
Also, a couple of rows behind us were a group of Sporting fans in the home end. I guess this is what happens when it goes on general sale.