BIRMINGHAM, England :Paris St Germain coach Luis Enrique hailed his squad as the best in the world on Tuesday after they reached the Champions League semi-finals with a 5-4 aggregate win over Aston Villa. The French side, who have never won Europe's elite club competition, will face either Arsenal or Real Madrid in their second semi-final in two years. On Tuesday, they lost 3-2 to Aston Villa in the second leg and the English side would have drawn level 5-5 or even won it over the two matches