"I keep listening to Ronald Koeman, and there is an obsession with talking about Ross Barkley every time he does a press conference", former Everton defender Neville told talkSPORT.
The admission that Mourinho is more determined than ever to sign Lukaku will come as no surprise to Everton, who have been preparing themselves for mammoth bids for a while now.
The 24-year-old's contract with Everton expires in 2019 with manager Ronald Koeman convinced that he will not leave the club this summer. We do need more goals from different players in our offensive part of the team and this is something we will address in the summer ahead of next season.
Koeman says the length of time it has taken Barkley to consider the deal suggests he could move on.
Lukaku, 24, has been in sensational form for Everton in the Premier League this season, scoring 24 goals - just two behind Tottenham striker Harry Kane in the race for the Golden Boot.
"He was one of the players who didn't show productivity today", Koeman, whose side finished seventh in the table after losing three of their last four games, said.
The striker still has two years left on his current contract, having rejected a new deal worth a club-record £120,000 per week. Okay, I'm not anxious because I like to work with players who like to stay.
"I will have to talk about the situation but I expect an answer soon after the weekend and not another 10 days".
"I'm here to serve the club and the best way to do that is to win the next game". "I don't need to explain more because if we don't want the player to stay longer, then we don't offer him a new contract".
"That's what we try to find, but it's not so easy but I am really hopeful that that aspect we can change for next season".