The Lions shot-stopper has been identified as a replacement for the Dutchman with City’s Championship rivals set to let the 29-year-old depart.

Long, who has previously played for Sheffield United, made 36 appearances for Millwall last season and will challenge Angus Gunn for the number one spot at Carrow Road.

An England youth international, Long has played 86 matches at Championship level having joined from Hull back in 2021.

He is unlikely to be unveiled as a Norwich signing prior to Krul’s move to Luton Town being rubber-stamped, with the 35-year-old set to undergo a medical with the Premier League newboys on Tuesday.

Gary Rowett confirmed Millwall would be open to allowing Long to depart in an interview last week.

“It’s really, really simple. I spoke to George and he’s very keen to be a number one somewhere if that opportunity arises. And I feel that’s fair for him,” Rowett said, per the Southwark News.

“He’s worked very hard to be in the number one position and by bringing Matija in it obviously pushes him down that order through no fault of his own.

“I had a conversation with him and just said until the window shuts we’ll just make sure we’re all clear on what the opportunity may look like if George doesn’t get that chance. I think we’ll sit down and re-assess that.

“He’s been incredibly professional, he’s conducted himself fantastically well and like I said it’s a difficult situation as it’s not his fault. He hasn’t done anything wrong. We just had to make a decision and it’s literally nothing more than that.

“I know people like to speculate but he’s been brilliant around the place, he’s a really popular player and, like I said, if the window shuts tomorrow and George hasn’t had the opportunity to play first-team football somewhere, then we’ll reassess what that order looks like.”