Super Cup: The trophy that eludes Emery

[Getty Images]It's the battle of the European champions when Aston Villa face Paris Saint-Germain in the Super Cup on Wednesday in Salzburg. PSG, who are the holders after beating Tottenham 4-3 on penalties last year, will bid to become the fourth team to successfully retain the trophy. This is Aston Villa's second appearance in the Super Cup, previously beating Barcelona 3-1 on aggregate in 1983 (0-1 away, 3-0 home).And whilst Unai Emery is widely considered a European competition mastermind, h