By the way, is Darwin Nunez's transfer information to Liverpool been confirmed?
Have you taken a look at Liverpool official site or its social media channels?
They have announced it officially, mate. Of course, Darwin Nunez's transfer is confirmed already, he is a Liverpool player now (Darwin 27).
https://www.liverpoolfc.com/news/liverpool-fc-complete-signing-darwin-nunezThe news of Lewandowski's move to Barcelona is still uncertain because Barcelona is still not out of the financial crisis.
I don't think Barcelona can sign Lewandowski. They are not urgent to sign a new CF. They also must use their money efficiently, buying a new CF just wasting money. Since they are in a financial crisis, they have a limited allocation to sign new players. In my opinion, it is not the right time to consider buying a new CF like Lewandowski.