Ferrari boss Domenicali told Sky Sports News that he expects the fight for both the drivers' and constructors' titles to be closely fought.
He said: "The Championship is very, very long. I don't want to hear anything on the Championship because it will be a very tough and sporting challenge and a fight right up until the end. Of that, I'm pretty sure.
"And today in the race, they had a different pace with problems we don't know. Things can turn up in a different way very quickly.
"Let's see what is going to happen at the end, we need to stay very, very cool until the end."
The drivers' championship is now a two-horse race between Alonso and Vettel, with the Spaniard trailing the defending champion by just six points.