Kaka is currently out of action following surgery and it's uncertain whether he'll get back into Jose Mourinho's team.
Speaking to Rai, Zanetti said: "We are speaking about a great champion. He would be welcomed well by an already strong group.
"I know that you have been talking about an eventual transfer to Inter. I have learnt of it through the newspapers.
"Champions are always accepted well and they know how to play together so I exclude that there could be any difficulties with Kaka and Sneijder playing together."