Newcastle boss Eddie Howe has growing concerns for Alexander Isak's injury.
Isak's withdrawal from the Sweden squad, as well as Bruno nursing a thigh complaint with Brazil, will be of great concern to Eddie Howe ahead of their trip to Fulham a week on Saturday, especially as Allan Saint-Maximin is set to miss out after a setback in his recovery from a hamstring strain.
It was thought the Isak had a minor niggle but boss Janne Andersson revealed on Thursday he will return to Tyneside and miss their Nations League games against Serbia and Slovenia.
He said: "It is of course sad mainly for Alex but also for us as a team.
"After speaking with both our medical team and Alex, it is the right decision for him to leave."