The 2020–21 LEN Euro Cup was the 29th edition of the second-tier European tournament for men's water polo clubs.
Teams
The labels in the parentheses show how each team qualified for the place of its starting round:[1]
The labels in the parentheses show how each team qualified for the place of its starting round:
^Strasbourg could not play for the first leg due to a player testing positive to COVID-19. However, the primary reason for the suspension was a mistake made a few days earlier. Strasbourg did not undergo the mandatory PCR test two days before entering the hotel (the first testing had to be done 72 hours before the match, on Wednesday). As a result, it was decided that the match should be played on one leg, at Serbia, on the original date of the second leg.[4]