PSG flexed their muscles, bringing Ferran Torres off the bench to save the day, but only because Rennes made them By Get French Football News On the scale of expressions of prowess and power, Paris Saint-Germain bringing almost €150m worth of attacking talent off the bench – including the man who scored the winning goal in the World Cup final last month – ranks only a couple of rungs below the level of the extravagant aggression of a military parade. Imposing, dominating, re-asserting, this was…