According to sources, there are concerns over the possibility of a military conflict between Russia and Ukraine and that the final of the European club competition may be moved.
The Krestovsky Stadium, which was built as a centerpiece of Russia's hosting of the World Cup, is due to host the biggest game in club football on May 28, 2022, making it the second Russian city to host the biggest game in club football after Moscow.
The impact of the COVID-19 epidemic led to the staging of the 2020 and 2021 finals in Portugal, Lisbon and Porto, with original hosts Istanbul and Saint Petersburg being reallocated their hosting of the final in 2023 and 2022.
Due to political tensions between Russia and the west, the possibility of Saint Petersburg hosting the final of the European soccer competition is in doubt.
The UK government and European Union have given notice in the last 24 hours that they are ready to impose strict sanctions on Russia after Putin declared that his country now recognizes the independence of the Ukrainian regions of Luhansk and Donetsk.
According to sources, the political situation is being closely monitored and potential alternative options are being assessed, despite the fact that no decision has been made on the staging of the final.
With four English clubs still in the competition, the possibility of a third all-Premier League final in four years has raised the possibility of Wembley stepping in as a host venue.
The last two finals were moved at short notice due to COVID-19, and sources say that if the same situation arises this season, they will make a similar move.
With supporters likely to travel in numbers to the final due to the gradual lifting of COVID-19 restrictions throughout Europe, there is an acceptance that clarity will be necessary to avoid the problems that would be caused by a late change of venue.