Zanetti wasn't planning to retire that season. We never heard he was gonna retire even after the injury. I still remember Zanetti said numerous times that "The tractor is only changing its tyre". However, closer to the end of that season we suddenly heard Zanetti was going to retire. It came with more surprises because on the last match of the season he revealed Cambiasso, Milito and Samuel were leaving Inter as well. It was such a coincidence for all 4 of them left at the same time, especially Cambiasso who still performed in Leicester. I'm sure Zanetti wouldn't mind to take a less role on the pitch.
They were forced to leave although I do not think it came from Mazzarri, but Thohir. I think it was done as a budget cut. They were the last 4 of the treble team whose salaries were upgraded by Moratti.
If you watch again Zanetti's speech on his last day as a player, it doesn't reflect someone who has spent 20 years in the club and achieved everything achievable. It was a bland politically correct speech. Not enough heart or emotion in his words and facial expression that day. Many people said it was because that's just the way Zanetti is. Nope. The man was full of emotion when he finally won CL, but he became emotionless when his journey finally comes to an end?
It's kind of sad looking back what we have done to the treble winners. The way Lucio, Maicon and Julio Cesar left were also awkward. Needless to say about Eto'o and Sneijder.
It's a sad truth.
The fact they never mention anything makes my heart bleeds every time I remember it.