By Alessandro Schiavone in Leverkusen Bayer Leverkusen 2-7 Paris Saint-Germain Goals: Pacho, Doué, Kvaratskhelia, Doué, Mendes, Dembelé, Vitinha (PSG), Garcia, Garcia (BL) At 4-1 down, Bayer Leverkusen were already toast when Mark Flekken played his part in his side's worst defeat since a 6-0 mauling by Schwarz-Weiss Essen in 1954. Pillaged by the likes of Liverpool, Arsenal and Sunderland in last summer's transfer window, Leverkusen were unable to deal with the Champions Lea