Lazio have increased the asking price of Chelsea, Everton and Manchester United target Keita Balde Diao to £27m.
The Italian club are resigned to losing the forward this summer after failing to persuade him to extend his contract beyond June 2018.
Initially, it was reported a few weeks ago that Lazio would let the Senegal international go for £22m following strong interest from the Premier League trio.
But now, according to Leggo, Diao's asking price has suddenly gone up to nearer £30m.
Lazio have reportedly increased the 22-year-old's valuation following an approach from Italian champions Juventus.