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The 45-year-old, who left Liverpool to join Real Madrid in 2004, said: "He's laid his cards on the table, hasn't he?
"It's quite clear that he wants to move.
He feels like that's enough and that they've had previous chats which suggest that he's almost not free to leave but, you know, if certain things were done then he might be free to go, but it doesn't seem like Newcastle are playing that game."
He added: "This whole scenario is an interesting one because nine times out of 10 when a move comes about it's normally a club forcing a player and nobody's bothered, nobody says anything despite any kids that are in school or any families that have settled in an area or anything else like that.
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I'm not going to sit here and criticize Isak.
"I wouldn't have done that myself in terms of the actions he's taken, but I do get that he's a great player that wants to get to the top of his game and he's obviously not being allowed the move that he's desperate for.
It's just a sad situation when it's played out in the world's press and he's obviously not coming out well, let's say, from a reputational point of view."
It comes as several other pundits have criticized the striker for his conduct over the past month or so.
Speaking to Wayne Rooney on Match of the Day, who confessed he had been in a similar position to Isak when he requested to leave Manchester United, Alan Shearer said: "But you put in a transfer request.
"You didn't refuse to train, you didn't refuse to play, so there is a way to do it and Alex is not going about it the right way at all.
[The fans] are paying £60 or £70 [$80 or $94] for a ticket, £30 [$40] for petrol or a train ticket.
"You can imagine the anger that they're feeling that someone is taking the liberty of saying, 'I'm refusing to play.' You just can't do that when you've got a three-year contract."
Meanwhile, Liverpool icon Jamie Carragher also couldn't resist sharing his thoughts with iNews, explaining: "Transfers happen every summer but I don't think you should ever go toxic or nuclear where you refuse to play or train.
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