The Athletic famous reporter David Ornstein talked about Isaac on the podcast channel, and DO said he believes Isaac's Newcastle career is over.
He said in the podcast: "I think by September 1, when the transfer window is closed, Isaac is likely to have left the team and he is leaning towards joining Liverpool. Hopefully Newcastle will find a truly good replacement and use this transfer fee wisely to form a strong, competitive team.
"I think both Isaac and his representatives have made it clear that their plan is to leave, and from what I have heard, I think for Isaac, the chapter of Newcastle is over. ”