Bayer Leverkusen were finally able to properly celebrate the Bundesliga and German Cup titles with their fans on Sunday. The club were crowned Bundesliga champions for the first time ever in April, but players, coaches and officials had to hold back on celebrations because there was still a lot to play for in the season. On Sunday, however, they returned to Leverkusen after winning the Cup in Berlin and celebrated with the fans. After landing back home, the team headed to the Schloss Morsbroich museum and signed the golden book of the city of Leverkusen. From Schloss Morsbroich they travelled …