Newcastle United boss Eddie Howe has said that striker Alexander Isak must "earn the right" to train with his squad.
The Magpies rejected a £110m bid from Liverpool for Isak last Friday as the Sweden international trained alone at former club Real Sociedad amid uncertainty about his future.
The 25-year-old, who was reported as wanting to explore a move away from Tyneside by BBC Sport in July, was left out of the club's pre-season tour of Asia with what the club called a "minor thigh injury".
He reportedly returned to the Magpies' training ground, on Monday but Howe, speaking to the Newcastle Chronicle,, said he had not spoken to the forward since Liverpool lodged a bid.
"He's like any other player, we would expect him to come in and train as normal," said Howe.
The Newcastle boss, speaking before he travelled back home with his squad from South Korea, added that Liverpool, as far as he was aware, had not been back in touch since making their offer.
"You have to earn the right to train with us," Howe told the Daily Mail.
"We are Newcastle United. The player has a responsibility here to be part of a team and part of a squad - you have to act in the right way. So that is also at play here.
