"I have spoken to Javier two or three times this summer - the last time was only last week - and he was very happy, very positive," said the boss.
"He gave me the private number of his agent, Walter Tamer, and again the conversation was very positive and was all about football.
"Walter told me that two clubs with big, big names were asking after Mascherano - and I told him to forget it, that Javier was happy in Liverpool and he was not for sale.
"So I was surprised to see the agent's comments today.
"He has a long contract and any club can forget about bidding for him. They can offer £40m or even £50m, we don't want to sell."
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