Ajax coach Frank de Boer has told Liverpool they have until Saturday to make an acceptable offer for Luis Suarez, or the Uruguayan forward will not be leaving the Amsterdam club.
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Liverpool are making a concerted effort to sign Suarez, 25, but a delegation of club officials returned empty handed from a meeting in the Dutch capital earlier in the week after talks failed to yield an agreement.
It is believed that Liverpool have offered £12.8 million, while Ajax are demanding a fee in the region of £21 million for a player who scored 49 goals in 48 games in all competitions for the club last season.
With the transfer window closing on Monday night, De Boer says Ajax will not allow negotiations to drag on into the final hours of January.
"We don't want to lose him,'' De Boer said. "Liverpool know what they have to pay and we are sticking to our guns. We want to know by January 29, after that nothing more will happen.
"We'll add €5 million per day to our asking price from Saturday on until the end of the transfer window. He thinks Liverpool are a good club, but he understands our decision to hold on to him."