When the EHF Champions League Men returns to action in six weeks' time, Europe's top flight will look differently from previous years. The 2026/27 season, which throws off on 9/10 September, marks the start of a new era in which the competition has more teams on the starting grid and is played under a changed system. It is the first adaptation to the EHF Champions League Men since the general overhaul of all European club competitions prior to the 2020/21 season — and this is how the new format works.