Apart from this, if we judge the final, then generally both the teams are often strong in the final. So if Chelsea plays the final with its full force and enthusiasm, then it is possible that they will gain some control over the PSG team, but not often. But I will consider PSG to be the winner due to superior form.
The strength of PSG defence can be seen from the fact that they have conceded only one goal in this tournament so far and Chelsea has to breach through that strong defence to win the title. PSG recently won UEFA champions league and they have also performed well in this tournament except in group stage game against Botafogo which they lost. In football anything can happen on match day and that thing must be kept in mind by PSG. No doubt Chelsea is underdog for the final but they have the capability to do upset in the final.