Four-times Formula One world champion Sebastian Vettel is set to quit Ferrari at the end of the year after contract talks broke down, German media reported late on Monday.
The Italian team were not immediately available for comment.
Germany's best-selling tabloid Bild and Auto Motor und Sport both reported that the 32-year-old, who will be out of contract at the end of 2020, had rejected the terms offered in a new deal.
They said the separation with Ferrari, the sport's oldest and most successful team, could be announced officially on Tuesday.