He is the 'official' fan from SLC - not sure of his name but he is bloody annoying and I wish he would shut the hell up!!
Edit- here you go..
Sri Lanka's Super-fan arrives down under for #cwc15 | Cricket World Cup News
Have to totally agree with this comment, I was sitting about 4m away from this guy and he was so annoying almost ruined the enjoyment of the game for me. He never shuts up and his voice is so grating.