It's very interesting to see Isaak has declared his interest to play for Liverpool. I think he will fit to the club, and it's good for Liverpool to sell Nunez, then add more money to sign him from Newcastle.
It will better if he can forces his club to decrease his release clause, then he can move to the Liverpool asap.
Liverpool combined with him is gonna be a great combination. I hope that is gonna happen soon.
Isak can strengthen the attack of any team, and it seems that Barcelona and Arsenal are also not against getting him in their team, but I think the transfer fee is too high for this to be possible.