The Dutchman also revealed that the Toffees have received no offers for the midfielder, who has just one year left on his current deal
Everton boss Ronald Koeman has confirmed Ross Barkley will leave the club after rejecting a new contract.
Barkley, 23, has been strongly linked with Tottenham and Arsenal as he enters the final year of his current deal at Goodison Park.
Koeman said in May that Everton needed a sharp response from Barkley regarding his future or they would be forced to sell the midfielder.
And now the Toffees manager has said Barkley will depart his boyhood club after expressing his desire to seek pastures new.
Speaking in a press conference on Wednesday, Koeman said: “He declined our contract offer and he has told me he is looking for a new challenge. I need to respect that.”
The Dutchman was also asked whether the midfielder would leave 100 per cent this summer, as opposed to next summer, to which he replied: “Yes.”
However, Koeman also revealed that Everton have not received any offers for Barkley.
The admission that Barkley will leave the Merseysiders will likely fuel their pursuit of Swansea City star Gylfi Sigurdsson, who is viewed as a replacement.
Various reports claim Everton’s latest offer of £45m for the Iceland international has been rejected by Swansea.
Barkley, who joined Everton’s youth academy aged 11, made his full senior debut against Queens Park Rangers in 2011 before scoring his first goal for the club against Norwich City in 2013.
He has since gone on to make over 170 appearances in all competitions for Everton, scoring 27 goals.