Error in reading xml file

hi,
i am getting the following error,'http:/synd.cricbuzz.com/ashwl/scores-multi.xml' is not a valid virtual path. please suggest me how to remove this error.

 protected void Page_Load(object sender, EventArgs e)
  {
  string xmlfilepath = Server.MapPath(@"http://synd.cricbuzz.com/ashwl/scores-multi.xml");
  if (File.Exists(xmlfilepath))
  {
  using (DataSet ds = new DataSet())
  {
  XmlDocument doc = new XmlDocument();
  doc.LoadXml(File.ReadAllText(xmlfilepath));
  ds.ReadXml(new XmlNodeReader(doc));
  Repeater2.DataSource = ds;
  Repeater2.DataBind();
  }
  }