Manchester United are willing to meet Inaki Williams's £81m release clause, according to El Chiringuito.
With Romelu Lukaku on the verge of joining Inter Milan, United have identified the Athletic Club striker as a potential replacement.
Athletic's Basque-only recruitment policy tends to place a premium on their players, and they have told United that they will not sell the 25-year-old for less than his buyout clause.
But that has not necessarily killed the deal, with the Red Devils reportedly open to paying £81m for the frontman.
Williams scored 14 goals in 41 appearances in all competitions last season.
He has been capped once by Spain in a friendly against Norway, but could yet switch his international allegiance to Ghana.
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