Chelsea have been warned that talented youngster Kenneth Omeruo will not sign a new contract unless offered significantly better terms.
The Nigeria international has been impressive whilst on loan at Middlesborough this season and is set to travel to Brazil to compete in the World Cup.
Omeruo's fine form in the Championship had sparked off contract talks with Stamford Bridge officials but, according to the player's agent, those talks have stalled.
The 20-year-old centre-back has just one-year left on his current deal and his future now lies in some doubt after he rejected Chelsea's initials offer of a three-year extension.
His agent, Chika Akujobi, updated the Evening Standard on why the deal was rejected.
He said: “Chelsea have made an offer for Kenneth, but we believe he deserves much more than they are offering.
“He has done well at Middlesbrough and he will be going to the World Cup with Nigeria and all these should count for something.
There is no speculation as to how much Omeruo is asking for but his demand to earn more could be inspired by reports that Chelsea youth player Andreas Christensen in earning £20,000-a-week.
Despite not playing one senior game for the Blues, Christensen is already earning over £1 million-a-year.
Omeruo joined Chelsea in 2012 after coming through the youth system at Standard Liege. He has enjoyed successful loan spells at ADO Den Haag and Middlesbrough and is yet to play for the Chelsea senior team.
He has 14 caps for Nigeria.