The 18-year-old has drawn interest from Liverpool and Manchester United but Eddie Howe is the latest Premier League boss to be linked with a swoop for the midfielder.
But Evans, who has been Leeds boss since October 2015, knows he must hang onto the £5million-rated teenager.
"It doesn't surprise me that Eddie, with how he's got his teams playing football, is interested in Lewis, who has absolutely everything," said Evans.
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