Every English club that has retired one shirt number or more as Liverpool 'immortalise' Diogo Jota's No. 20., Many football clubs also observe this tradition; today, we will look at some of them. Here are some of the famous football teams that retired numbers., ISAAN KHAN: Liverpool fans are calling for the club to retire Diogo Jota's No20 jersey as a mark of respect after his tragic death. The football world is in a state of mourning., List of retired numbers in association football Association football clubs around the world sometimes retire squad numbers to recognise players' loyal service, sometimes as a memorial after their death. Background, Association football clubs around the world sometimes retire squad numbers to recognise players' loyal service, most as a memorial after their death., Similarly, several clubs have been required to reissue retired numbers for continental club competitions due to squad numbering rules of continental confederations. For example, CAF [7] and CONMEBOL have such rules in their club competitions, but CONCACAF does not..