public IActionResult Find(int?tournamentId)
        {
            try
            {
                if (!tournamentId.HasValue)
                {
                    return(BadRequest("Invalid Input."));
                }
                var result = _tournamentRepository.Find(tournamentId);

                if (result != null)
                {
                    _logger.LogInformation($"ID : {tournamentId} has been successfully found.");
                    return(Ok(result));
                }
                else
                {
                    _logger.LogError("Tournament ID : {0} was not found.", tournamentId);
                    return(StatusCode(404, StatusCodes.ReturnStatusObject("Tournament Not Found.")));
                }
            }
            catch (Exception e)
            {
                _logger.LogError("Failed to located Tournament. Error - {0}", e.Message);
                return(StatusCode(400, StatusCodes.ReturnStatusObject("Something went wrong.")));
            }
        }