"I wanted to take him to Stamford Bridge and did an overview to check how much we would have to pay. But it appeared that Celtic expected a huge amount of money.
"Now the price tag is unreal. When I hear that, after a strong performance at Euro 2008, he is now worth between £10m and £15m, I know immediately that nobody will pay that kind of money for a goalkeeper.
"Boruc is a top-quality goalkeeper. He is brave, confident and he won't get scared by anybody. Having a goalkeeper like this means you are midway to success.
"But I repeat, these kind of amounts are not paid for a goalkeeper - I think he will stay in Scotland next season."