Wouldn’t surprise me if he signed for Chelsea, let’s face it, they’re always in the running to sign everybody

I am not surprised if that transfer between Newcastle United, Isak and Chelsea happens, but I wonder whether Chelsea actually need Isak after signing with Joao Pedro in the summer?
Alexander Isak only scored many goals for Newcastle United last season and he has never come nearly to the expectation as a next Ibrahimovic. One magnificient season is not enough to convince me that Isak already changed and upgraded himself to a higher quality level but I remember that before joining Liverpool, Mohamed Salad was not too goal productive like what he shown after that transfer and chance of playing for Liverpool.
Isak can repeat that success of Mohamed Salah and upgrade himself more in Liverpool or fail to repeat it. In my opinion, it is a risky transfer for Liverpool if the transfer cost is too high.