Stoke City will only allow Jack Butland to leave the club for £30m, according to a report.
According to The Sun, the Potters, who were relegated from the Premier League this season, will attempt to match the price that Sunderland got for Jordan Pickford when the Everton stopper moved to Merseyside.
The newspaper adds that Liverpool's decreasing interest in Butland could pave the way for Wolverhampton Wanderers or Leicester City to sign the stopper.
Any potential deal for Butland would see Birmingham City profit, after the Blues added a 20% sell-on clause to his contract when the 25-year-old left the Midlands in 2013.
Butland could feature for England at the World Cup, after being selected alongside Jordan Pickford and Nick Pope in Gareth Southgate's squad.