The 21-year-old even handed in a transfer request to push through a move to Stamford Bridge, but the Toffees stood firm and held onto their prize asset.
And Lukaku, who arrived at Goodison Park last year for £28m after failing to make it at Chelsea, admits Everton did well to keep the young centre-half.
"It's a statement for the club, for me," Lukaku told Sky Sports News. "It's nice to see that John showed his character and the club did their job to keep the player.
GETTY
Romelu Lukaku thrilled to see Everton stand their ground over John Stones
GETTY
Jose Mourinho made no secret of his desire to sign John Stones throughout the summer
"But it's up to us to help John improve to reach the top level, as he is doing at the moment. I think the club made a statement by keeping him here at the club."
Everton face West Brom at tonight (8pm) and could go four points clear of Premier League champions Chelsea with a win at The Hawthorns.
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