Former Everton captain Leon Osman can see Ross Barkley being sold.
Osman said manager Ronald Koeman was not prepared to be held to ransom by any player and suggested Barkley, who has been attracting interest from Tottenham, would fit in well at Manchester United.
"In football these days players have so much power. I just think Ronald Koeman is completely against that," he told talkSPORT.
"Ronald Koeman is a man who wants control of everything that goes on at the football club. If it looks like Ross isn't signing his contract, he is going to demand that things are sorted and will try to get as much money as he can.
"There has been a lot of talk about Tottenham. They have got a fantastic team, but would he be the first name on the team sheet? I don't know.
"I think someone like Man United might want him. Jose Mourinho likes his physical players, he likes everyone in his team to be powerful and big, and Ross Barkley certainly fits that bill."