Newcastle United striker Alexander Isak was told to report for training after the rest of the squad had left on Wednesday as uncertainty over his future continues, PA news agency has reported.

The 25-year-old Sweden international did not travel with his teammates on their preseason trip to Singapore and South Korea , ostensibly because of a minor thigh injury, after Liverpool , who subsequently tabled a £110 million ($197m) bid for him, let it be known they remained interested in acquiring his services.

Isak, who later informed the club he wanted to explore his options this summer, instead flew to Spain to train at former club Real Sociedad and returned to Tyneside at the weekend, shortly before head coach Eddie Howe and his squad landed back from Seoul and were given two days

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