West Ham are reportedly set to join the chase for Manchester City goalkeeper, Joe Hart, who is on-loan at Serie A's Torino until the end of the season.
With Adrian relegated to the bench after a string of errors and poor performances, Darren Randolph has been promoted to first-team duty by Slaven Bilic. However, the club are said to feel that the proposed £15m fee for the England shot-stopper is more than reasonable as Adrian's contract enters it's final six months.
A source close to the club has revealed: “Adrian can leave if the right offer comes in for him. A new top line keeper is very much on the agenda.
“The clause is there in case any minds are changed on signing him up for another two years, but it looks like he will leave. There’s no question of standing in his way if the right offer comes along, we are looking at options to replace him."
The Irons are reportedly willing to listen to offers of around £5m for the keeper and will need all the money that they can get if they are to add Hart, who currently earns around £100,000 a week, to their wage bill.
Despite actually making more saves per game on average than Hart, Adrian has won fewer clean sheets and concedes more goals per game - 1.82 compared to Hart's 1.35 to be precise.
If the Irons, who have been linked with a spate of players already this season, are unable to seal a deal for the England number one, Simon Mignolet and Asmir Begovic are reported back-up targets for the London club.