By Daniel Orme Harry Kane demanded swift improvement from Bayern Munich after their Bundesliga title showdown saw them humbled by Bayer Leverkusen. Thomas Tuchel’s men were aiming to seize top spot against their title rivals on Saturday evening at the BayArena. The game quickly turned into a nightmare for Bayern. Leverkusen cruised to a 3-0 success with the goals coming from Josip Stanisic, Alex Grimaldo and Jeremie Frimpong. It leaves Bayern five points off the pace in the race for the title, while their 11-season monopoly of the Bundesliga now under serious threat. If they are to retain the …