Freshly-crowned Bundesliga champions Bayer Leverkusen left for London on Wednesday as business as usual returned in their search for more titles and records. Leverkusen take a 2-0 lead and an unbeaten season record of 43 matches into Thursday’s Europa League second leg quarter-final at West Ham United. Xabi Alonso’s team clinched a first ever Bundesliga title on Sunday with five games to spare when they thrashed Werder Bremn 5-0. Apart from the Europa League are also in the German Cup final where they are big favourites against second division Kaiserslautern on May 25. If they avoid defeat aga…