Corluka also expects his good friend to stay at White Hart Lane.
"Everyone wants to play in the best competitions but we need to try to achieve that here, not think about leaving the club to go somewhere else," Corluka told the London Evening Standard. "We need to try to put the club in the Champions League next year.
"I'm good friends with Luka and I don't see any desire there that he wants to leave the club. When I have spoken with him, he has never said that he wants to leave Spurs. He knows he is an important player here, everyone likes him and I think he wants to achieve good things.
"But, of course, he will expect maybe a couple more signings to be added to this team. I have known him since he was 14, and even then you could see he was a quality player but now he's showing it in one of the toughest leagues and you see that he is probably one of the best in his position.
"You have players like Xavi and Andres Iniesta for Barcelona who are great in his position but Luka is showing he is close to them. Look at the clubs showing an interest in him. That proves how good he is."