Frenchman Laurent Mekies got down to work as Red Bull team principal on Thursday, a day after replacing Christian Horner, and recognised big challenges ahead for the once-dominant former champions.

Red Bull‘s termination of Christian Horner has sent shockwaves throughout the world of Formula One. A formidable presence in the sport, Horner had helmed Red Bull Racing throughout its rise and dominance.

Laurent Mekies, the boss of sister team Racing Bulls, will replace Horner, who has been with the team since its inception in 2005 and led it to 124 wins and numerous championships.