Sebastian Vettel, who has had a tough few months, says he is not worried about the ambitions of his Ferrari teammate for 2019.
"Of course it will be different," Vettel is quoted by Kolner Express newspaper.
"Charles is not Kimi and Kimi is not Charles. I'm sure he wants to beat me and I want to beat him too. The rules of the game are clear to everyone. That was no different with Kimi. The key is that we work together on the track," the 31-year-old added.