This decision comes as Liverpool is expected to make another bid for Isak's transfer. The Reds had previously offered £110 million, but it was rejected by Newcastle. The Magpies value Isak at £150 million and have informed Liverpool that they will not sell him until a suitable replacement is found.
Isak has been training separately from the senior squad, indicating his desire to move to Liverpool. The sale of Darwin Nunez to Al-Hilal is likely to prompt Liverpool to return with a new offer for Isak in the coming days.