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Former Manchester City financial adviser Stefan Borson reckons Alexander Isak's switch to Liverpool will ultimately set them back £300 million ($406.3 million).
The Swedish striker brought a summer-long transfer saga to a close on deadline day when he was formally unveiled as a Reds player, smashing the British transfer record following three years at Newcastle.

Isak's switch to Merseyside proved controversial, with the striker downing tools to force through a move after missing the club's preseason tour of the Far East due to a minor injury.
He then sat out the entire preseason programme and the opening month of the Premier League campaign.
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"I think from Liverpool's perspective, it's a very expensive deal, but we know that," he told Football Insider.
"You don't pay £125 million ($169.3 million) and not expect a lot of cost.
"For Newcastle, they clear out £125 million net on the transaction, so that goes into their coffers
And then Liverpool, you're looking at a £125 million transfer fee.
"You have got maybe £5 million ($6.8 million) of solidarity payments.
"You have got maybe £5 million on Premier League levy
It's going to be about £150 million ($203.1 million), and then you've got probably the same again with wages over the six years, maybe another £150 million with bonuses.
"It's a £300 million deal over six years