Norwich City have been warned that they will not be able to get Celtic goalkeeper David Marshall on the cheap. The Canaries had a bid worth up to £500,000 rejected last week and agent Willie McKay revealed yesterday that unless manager Peter Grant was prepared to up his offer in the very near future, then Marshall will be staying at Parkhead.

Norwich City have been warned that they will not be able to get Celtic goalkeeper David Marshall on the cheap.

The Canaries had a bid worth up to £500,000 rejected last week and agent Willie McKay revealed yesterday that unless manager Peter Grant was prepared to up his offer in the very near future, then Marshall will be staying at Parkhead.

McKay added that any club wanting to sign the 22-year-old would also have to match his Celtic wages, although it is understood that this would not be a problem for the Canaries.

Hibernian have also been alerted to the fact that Marshall handed in a transfer request at Celtic last week, although McKay said he cannot see the Edinburgh side being able to afford his wages.

“I can't see him going there because he would break Hibs' wage structure,” said McKay.

“Norwich made an offer to Celtic but they rejected that and that was the end of the matter. I can't see him going anywhere this summer unless a club comes in with a decent offer and can match his wages.”

McKay, who also lists Joey Barton and Nicolas Anelka among his clients, added that Celtic are preparing to offer a new contract to Marshall, who would apparently now be happy to remain in Scotland.

Norwich assistant manager Jim Duffy admitted that Marshall's future is still in Celtic's hands as he has a year left on his contract with the Glasgow giants.

“We would like David Marshall at the football club, but there must be an agreement between all parties. It must be agreed with Celtic and that hasn't happened.

“We are led to believe the player would welcome a move to ourselves, but Celtic still have the final decision on that one.

“It's no secret we have made an offer but it doesn't match their valuation.

“It will now be up to Peter Grant and Neil Doncaster to have further discussions as to where they want to go with that. It's in Celtic's hands because the player is under contract.”

Marshall was signed by Grant on loan until the end of the season in January but this was cut short due to an ankle injury sustained in the FA Cup defeat to Chelsea.

However, Norwich were forced to continue to pay the Scot's wages despite him returning to Glasgow to undergo treatment on his ankle.