It will be a big mess and a shame on Liverpool is PSG knocks them out of the round of 16, because Liverpool currently is the best in EPL and they have dismantled a lot of big teams this season both in EPL anf in UCL. I don't think that PSG has the quality to get tid of Liverpool when they clash.
I also think the same for the Liverpool vs PSG match in the UCL in the round of 16 this season because what Liverpool have had this season is actually enough to continue to be proven and shown by them in all competitions this season. So I'm not sure that PSG can be able to eliminate the strongest team in the Premier League this season through the round of 16 UCL even though PSG themselves are the best team in Ligue 1 throughout the season including this season too.