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Although, PSG once beat the incredible Manchester City side of 2021 in the group stage 2 - 0, yeah at that time Mbappe, Messi and Neymar were all playing for PSG then, I think Messi even scored in that game, I really can't totally remember though. Although, City beat them 2 - 1 in the return leg. But like you said, PSG didn't dominate the match, it was Manchester that dominated even though they lost 2 - 0 in that very game. In my opinion, PSG has the tendency of going far in this season, if I'm not mistaken they might actually eliminate Real Madrid that's if both of them gets to meet in the SF.
If they play on the same level against Dortmund as they played against Liverpool, I have no idea how on earth Dortmund could have a chance to get away with luck or anything. The thing is that Dortmund likes to play counter attacks, but so does PSG and for now with Dembele and Barcola being in such a great shape, PSG is ahead by far. Both legs taken together, I think PSG is a 75:25 favorite at least. Perhaps it is more like 80:20, meaning that they would win four out five times if they played two legs.