The Spurs boss insists the Croatian midfielder is good enough to play for any club in the world but he believes that his side can match Modric's ambitions.
The 25-year-old has been the subject of a bid from Chelsea and has declared his intention to leave White Hart Lane this summer.
Plea: Harry Redknapp has begged Luka Modric to stay at Tottenham
Speaking from South Africa, where his side are currently on tour, Redknapp said: 'I can understand how Luka feels in all this. If anyone offers to treble your wages you'd be interested and Chelsea are a big club.
'Everyone wants Luka. Just ask Alex Ferguson what he thinks of him, ask Roberto Mancini at Manchester City - they all want him. He could play for Barcelona.
'Luka wants the chance to win things and he is ambitious. All I'll say is that we are too at Tottenham.
Ambitious: Modric (left) captained Spurs against Orlando Pirates
'It's early days in the transfer market and no one is more ambitious than our chairman Daniel Levy.
'Luka wants to know that we'll be right up there challenging next season and we are working hard to bring in a couple of big signings that may convince him to stick with us. I hope so.
'I have sympathy for Luka and his character has shone through in all this.
'He's a fantastic bloke and a genius of a player. I'd just ask him to be patient.'
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Source: Daily Mail
Source: Daily Mail