Newcastle insist that both Michael Owen and Emre will be with the club next season.
Both players have made impacts of varying qualities since their big money moves from Real Madrid and Internazionale respectively.
Although neither player has suggested in anyway they are unsettled, they have been linked with moves away - Owen with former club Liverpool, and Emre with a possible switch back to the continent.
However, Newcastle caretaker boss Glenn Roeder - who looks increasingly likely to get the job on a permanent basis - insists both will be staying put.
"I don't think there is any reason whatsoever to think either player will leave the club," he said.
"There's nothing I've seen, detected or heard that suggests Michael and Emre won't be here next year.
"We certainly need to keep our best players, without doubt. Michael and Emre are up there with our very, very, very best players that we have here.
"If the club is to progress next season whoever is in charge, they must have Michael Owen and Emre in the squad."
Roeder also admitted that he will make every effort to keep Alan Shearer at the club.
The now-retired Magpies legend, who has been helping Roeder out on the coaching side, insists he wants a break from football - but Roeder wants to keep him involved at the club.
"A lot of things are up for discussion but what is fact is that I'd like to persuade Alan to be involved," said Roeder.
"He has a busy year with his work travelling round the world and I don't think he'll be in Newcastle a lot next year.
"But it would be stupid to not try to convince him to stay involved.
"We'll find him a role he's comfortable with. We know his ambitions as far as management's concerned - he has been focused for all his life."