Top-flight European clubs stand to lose more than £3.5bn because of Covid-19 even if the major domestic leagues and competitions reach their conclusion.
The figure, across this season and next, was outlined in a meeting of stakeholders within the game last week.
It is estimated if the competitions failed to reach their conclusions, the figure would rise to more than £6.2bn.
The German Bundesliga resumed on 16 May while the Premier League is aiming to restart on 12 June.
The eye-watering sums explain why so much work is going into plans to complete all the competitions – and start next season’s, including the logistical difficulty of organising 203 two-legged qualifying ties involving all 55 Uefa nations, to be completed before the middle of October.
Despite speculation to the contrary, BBC Sport understands that for sporting, political and financial reasons, Uefa is committed to retaining the inclusivity of its competitions and would only cut access as a last resort.
However, adjustments may have to be made, including the potential for one-off ties and regional qualifying, if the process is to be completed in time.
Logistical headaches also exist with the calendar for international football.
Uefa’s plan to normalise the situation is to arrange triple-header international windows in October and November. However, while this might work in Europe, it would be difficult to implement in other confederations given the number of key players needing to make lengthy journeys ‘home’.
One of the major obstacles to the start of the 2020-21 international competitions are medical protocols.
Tim Meyer, who is in charge of Uefa’s medical committee, is also responsible for the protocols introduced by the Bundesliga for its return this weekend.
While the 28 clubs from 12 countries still in this season’s Champions and Europa League should be able to adhere to the same protocols, expanding that across an entire continent for the enormous qualification series will prove a different challenge completely.
It has been noted the budgets of many clubs involved are far removed from those commonplace even in the mid-sized leagues.