Modric missed the 3-0 defeat at Manchester United after informing Redknapp he was not in the right frame of mind to play at Old Trafford.
Mind games: 'Confused' Modric (right) missed the United defeat
It has been claimed the Croatian star has effectively gone on strike in order to force through a move to Chelsea.
Redknapp would prefer to believe Modric has just got 'confused' faced with the opportunity to treble his wages.
However, with chairman Daniel Levy refusing to yield from his initial stance that Modric would not be sold, Redknapp believes he can pick the player up once the August 31 deadline has passed.
'If anyone can pick him up, I can,' said Redknapp. 'I have a great relationship with him.
'People have to understand it is not an easy situation.
'If someone offered to treble anyone's wages, they would find it difficult, wherever they worked. That is the situation the boy is in.
'If someone offers ?150,000 a week rather than ?50,000, you are going to have your head turned.
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'Some players can handle it. I know players who have caused havoc in the dressing room in order to get a move. I have seen it so many times.
'But he wouldn't cause anyone a problem.
'Let's be truthful. He wanted to go, but he has just got confused with it all.'
Although Redknapp's own preference is for Modric to stay, he has spoken of the squad strengthening he could do if the player was sold.
However, as he admits, the matter is not in his hands, with Levy controlling the situation.
'Arsenal have had this all summer with (Cesc) Fabregas and (Samir) Nasri. They are going to go,' said Redknapp.
'It is very hard to keep people when they want to go but the chairman will make the decision and he has made up his mind he will not sell.
'There is no point selling late in the window anyway when I can't get any replacements. That won't help anyone.'
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However, Redknapp does feel Levy needs to have a face-to-face meeting with Modric in order to try and quell the midfielder's simmering discontent, and offer a contract more in keeping with his status as one of the Premier League's best midfielders.
'The chairman has to sit down and have a chat with him,' he said.
'They probably fell out a little bit over that first meeting.
'If they can have a meeting and resolve the whole situation and Daniel tells him we need him, he is important and that we are ambitious and will bring one or two players in, you might find the boy will be okay.'
Tottenham have already gone some way towards that as Redknapp expects a loan deal for Emmanuel Adebayor to join from Manchester City to be concluded, in addition to a move for Real Madrid midfielder Lassana Diarra.
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