For all of the money PSG has spent over the years in search of Champions League glory, it was Kingsley Coman, a player it let go on a free transfer in 2014, who wound up as Bayern Munich's hero to end the most unusual of European seasons.
Many have gone to Real Madrid and won a Champions League, and perhaps one day Kylian Mbappé will too. But for Mbappé, a product of the Paris Banlieues, to bring that glory to France's capital city for the first time would be invaluable.