Arsenal are locked in a battle with West Ham and Wolves to sign Ukraine forward Yaremchuk, says RTBF.
Gent sporting director Michel Louwagie says the club want in excess of £13million for his services.
Speaking before the Euros quarter-final in Rome, he said: "I never speak of financial amount, but indeed, we expect to touch a large amount for Yaremchuk - 15 million euros?"
"Everything will depend on the country and the market.
"But the fact that Ukraine faces England on Saturday is really very good - the player will be able to put himself in the window.
"The English market is obviously the most interesting and we know that the English clubs always position themselves according to the big tournament of the summer."
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