Newcastle offered a heated response just hours later and the transfer saga would reach another layer of complication after his £125 million ($169.2 million) switch to Anfield when Isak was accused of intentionally dropping his performance levels in the hope of sabotaging Newcastle’s Champions League aspirations.

Summer signing Frimpong missed the Premier League victories over Newcastle and Arsenal with a hamstring injury

Eddie Howe has exposed the lingering animosity between Newcastle United and Liverpool over the transfer of Alexander Isak as he revealed the player changed as soon as “the other club” got involved this summer.

Alexander Isak is yet to make his Liverpool debut but he finally got onto the pitch with Sweden for a friendly against Kosovo.

Alexander Isak has taken a massive step closer to making his Liverpool debut after being filmed joining his new team-mates at the Red's training base.

Alexander Isak had responded to the suggestion Liverpool gave an instruction to Sweden over his role in the country's World Cup qualifiers against Slovenia and Kosovo

The final day of the Premier League summer transfer window saw Alexander Isak finally land his record-breaking £125m [$169m] move to Liverpool. After effectively going on strike at Newcastle United - to force an exit from St. James' Park - the two rivals agreed a deal just hours before deadline.

Liverpool signed Alexander Isak on transfer deadline day and had already brought in Hugo Ekitike from Eintracht Frankfurt, who was snapped up for around $106 million (£79 million)