If Barcelona are to win against PSG, they will need to keep their defense tight and stop Mbappe. Barcelona have no chance of winning if they can't stop Mbappe. PSG is a fairly stable team now. But even then, the team is most dependent on Mbappe to score goals. Barcelona will have a chance to control the match if they can resist Mbappe.
Lewandowski is in good form right now. Raphinha, Felix and Lewa can perform well and Barcelona have a chance to win against PSG. However, Barcelona's defenders must play well. If the defenders do not perform well, it is not possible to counter a team like PSG with only good performances from the attacking players.
Both teams currently are on same level of quality and performance even few are giving PSG advantage, but things are never been easy for them to win and have spot into next round because Barcelona has never been easy team to beat first leg game is going to play in Paris which is good advantage for them because this can give them good chance for having psychological advantage like they have in last round against Real Sociedad with Barcelona will try his best to have performance like they achieve against Napoli.
Kylian Mbappe and Robert Lewandowski are the key players for this encounter with both are in good form and Lewandowski is having good support from the other top quality players with PSG is also doing impressive run under Luis Enrique and his experience is going to help PSG as he also spends good time at the Barcelona as coach currently prediction is not easy but for me PSG having good chance for the jumping into last four.