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Red Bull's Christian Horner is predicting Lewis Hamilton and Max Verstappen to be the main contenders for the 2022 Formula One world championship, though thinks a "couple of other drivers" could creep into the equation.

The new season gets underway with the Bahrain Grand Prix on March 18-20 with the teams all participating in a three-day pre-season test at the same circuit from Thursday to Saturday this week.

Red Bull's Verstappen is the reigning champion after picking up his maiden Drivers' Championship in controversial circumstances in Abu Dhabi in December.

Mercedes still ruled triumphant in the Constructors' Championship however as they took the team title for the eighth consecutive season, now trailing only Williams (nine) and Ferrari (16).

But though either Mercedes or Red Bull have won the