Swansea City have reportedly told West Ham United that goalkeeper Lukasz Fabianski will not be sold for any less than £7m.
The Hammers had their opening bid rejected by the relegated Swans last week as part of a double swoop which included defender Alfie Mawson.
West Ham want a new goalkeeper to replace Joe Hart, who is back at Manchester City after a season on loan, as concerns reportedly remain over Adrian's consistency.
According to The Sun, however, the East Londoners' offer of £4.5m for the 33-year-old was knocked back by Swansea, who are eager to make the most of one of their key assets.
Fabianski is part of the Poland squad for this summer's World Cup in Russia, playing in the second half of his nation's 2-2 draw with Chile last Friday.