public async Task <bool> AddPlayer(FullPlayerDTO player)
        {
            var players = await _playersRepository.GetPlayersAsync();

            if (players.Any(x => x.Name == player.Name && x.Nick == player.Nick))
            {
                return(false);
            }
            else
            {
                await _playersRepository.Create(new Player(
                                                    Guid.NewGuid(),
                                                    player.Name,
                                                    player.Nick,
                                                    player.City
                                                    ));

                return(true);
            }
        }