The good showings in this season’s European club competitions is good for the image of German football as a whole, the nation’s football federation (DFB) president, Bernd Neuendorf, has said. Bayern Munich and Borussia Dortmund are in the Champions League semi-finals for the first time in several years, and new Bundesliga champions Bayer Leverkusen are among the last four in the Europa League. Leverkusen’s season-long unbeaten run of 45 matches is unprecedented in the European top leagues, and the good showings of the teams could also earn the Bundesliga a fifth slot for the next Champions Lea…