Lewis Hamilton has been warned that his Formula 1 rival Max Verstappen has an extra incentive to beat him over the course of the coming season.
The Red Bull ace became world champion last year after a dramatic last lap overtake at the Abu Dhabi Grand Prix, capping off a season throughout which the two heavyweights exchanged blows.
In the eyes of some, however, Verstappen's achievement will be tainted by the huge slice of help he got from race director Michael Masi, whose controversial orders at the end of that race paved the way for his title success.
