private void mniGridDisqualificationPlayer_Click(object sender, RoutedEventArgs e)
{
Player playerToDisqualify = this.dgPointsTable.SelectedItem as Player;
if (playerToDisqualify == null) return;
if (PMW.Show(StringTable.MainWindow_PlayerDisqualification, MessageBoxButton.YesNo) != MessageBoxResult.Yes) return;
this.tournament.DisqualifyPlayer(playerToDisqualify);
}