Jagged Array with IndexOutOfRangeException

        static string[][] GetData(string url, string text)
        {
            string Data = ReadPage(url);
            string[] result;

            result = Regex.Split(Data, text);

            string[][] duo = new string[][] {};

            int i = 0;
            foreach (string res in result)
            {
                if (i >= 1)
                {
                    string[] uno = Split(res);
                    duo[i] = uno;
                    i++;
                }
                else
                {
                    i++;
                }
            }

            return duo;
        }