Lewis Hamilton "doesn't seem to be bothered about losing" and could be replaced at Mercedes by "fed up" chief Toto Wolff, according to Bernie Ecclestone.
Hamilton, 37, is enduring one of the toughest seasons of his career with Mercedes unable to compete with Red Bull and Ferrari at the front of the grid. Instead, he and new team-mate George Russell are scrapping for podiums whenever a quicker car has a mechanical issue.
Russell has impressed by finishing in the top five of all nine races so far this season, while Hamilton's form has been slightly more erratic. Former Formula 1 supremo Ecclestone is unimpressed by that from the seven-time world champion, and believes Mercedes chief Wolff could end his £40m-per-year contract early.
