Everton boss Roberto Martinez insists there's no buyout clause in Ross Barkley's contract.
Manchester City tried to prise Barkley away from Goodison before transfer deadline day - only to be thwarted by the £50million asking price.
"There is no buy-out clause," said the Everton boss, who is looking for Barkley to replicate the form that took him to the World Cup last summer after a knee injury ruled him out of the first two months of the season.
"In fact, there are no buy-out clauses in any of our contracts. The only one we had was with Marouane Fellaini, and that wasn't triggered so it didn't matter.
"So I'm not going to be worried about other teams' interest, because there will always be interest in talented young English players like Ross and also John Stones.
"With the club that has been mentioned, it doesn't make any difference to them whether a player has one or five years left on his contract - because they think everyone is there for them to buy.
"But the difference is that we have gone past the stage where we have to sell. This is a fantastic moment for us financially and all the decisions we take now are purely football decisions.
"Of course, the nature of the game means that even a club like Manchester United can lose Cristiano Ronaldo, but we don't need to sell because of finances."
