Despite this, Lewandowski did not appear to be the best rated player of the game but he was the worst rated player based on the aiscore. Kounde and De Jong were the two players who had the highest ratings in that match, but I agree that overall Barcelona didn't perform as good as expected in that match.
Lewandowksi isn't good like his was, I think his performance is declining in this season. If Joao Felix can show a good performance, I believe Barcelona will sign him to replace Lewandowski's position.
Osasuna is really good in counter attack, they can maximize their chance to score a goal. While Barcelona only keep passing in order to make them looks more dominant and giving pressure to Osasuna.