Kondogbia is at Valencia on loan with the option to buy.
“The big mistake I made was arriving at Inter a little too relaxed," he told So Foot.
“I didn't realise the noise that had been made in Italy about my signing. I wasn't ready for all this and didn't like that kind of pressure. They'd never seen Inter and Milan do battle for the same foreign player, but both clubs came to my home in Montecarlo asking for me to sign.
“They were convinced that with me, they'd win the Scudetto. I should've realised my arrival would generate excessive expectations. I was the third most expensive buy in Inter's history, after Christian Vieri and Hernan Crespo. I cost more than Ronaldo!
“In Milan, I didn't realise the television cameras in front of the hotel were there for me. It was a whole new life and I had to ask far more of myself. For example, if the training session starts at 11am, a great player must get there for 10am or even 9.30am. Let's be clear – I did not behave like a great player."