Damon Hill has issued Max Verstappen a ‘difficult’ warning given the position the Red Bull driver now finds himself in as he bids to be a four-time consecutive F1 champion. The 26-year-old has dominated Formula 1 in recent years to lift back-to-back-to-back titles. But after having it mostly all his own way last season, Verstappen now finds himself in a duel over the crown. McLaren, Ferrari and Mercedes have all proven they can fight with Red Bull. Largely thanks to Verstappen winning 19 of the 22 Grand Prix last year, Red Bull nearly had a perfect season. Only Carlos Sainz at the Singapore GP…