The Final Four, which took place at the Lanxess Arena in Cologne, Germany, was moved from May to December and was contested by the top two teams from Groups A and B – Barça, Paris Saint-Germain, THW Kiel and Telekom Veszprém.

The eight quarterfinalist teams are paired against each other in two-legged home-and-away matches, with the four aggregate winners qualifying to the final-four tournament.

A total of 35 teams from 21 countries submitted their application for a place in the competition's group stage before the deadline of 12 June.

The top two teams from Groups C and D contested a playoff to determine the two sides advancing to the knockout phase.

After the cancellation of the last 16 and quarterfinals on 24 April 2020, the top-two placed teams from each group played the final four.

[3] The final four was scheduled to be held at the Lanxess Arena in Cologne, Germany on 30 and 31 May but was rescheduled to 22 and 23 August 2020,[7][2][8] and later to 28 and 29 December 2020.