Lisbon is the favorite to have an August eight-team Champions League knockout tournament if the administering body Uefa gives it the thumbs up.
Uefa plans to move the final for the new format from Istanbul, where it was required to take place on 30 May.
The Europa League final is probably going to be moved to Germany, because of taking place in Gdansk, Poland on May 27.
Due to the coronavirus pandemic, continental cup rivalries in Europe were halted in March.
On 17 June the executive board of trustees of Uefa will take its choice.
Gatherings have debated various scenarios in the course of recent weeks, remembering finishing the tournament for two-legged ties as originally planned.
In any case, late conversations have focused on the sort of world overseeing body structure that Fifa is searching for with its idea of the Club World Cup, which it is felt will furnish broadcasters and TV audiences with the most energizing decision.
It would mean that the quarter-finals, semi-finals, and final are played as a smaller than usual tournament behind closed doors at one location.
The final of the Champions League would be played on August 23, with the finale of the Europa League on August 21.
Spain, Germany, and Russia were referenced as potential hosts for the Champions League however given its location and the fact that there are no teams left in the tournament this season, Portugal is viewed as the most probable choice.
Lisbon has two stadiums that have the facilities to have prominent matches, and lodgings to accommodate the number of teams necessary.
The Portuguese Primeira Liga continued on 3 June and this month the vast majority of the nation’s coronavirus limitations are lifted.
The Bundesliga continued in Germany on 16 May, and stadiums in Gelsenkirchen, Cologne, Duisberg, and Dusseldorf are probably going to stage games for the Europa League.