Red Bull sacked Christian Horner, who was Formula One's longest-serving active team principal and one of the most successful of all time, and replaced him on Wednesday with Racing Bulls' Laurent Mekies.

After 20 years at the helm of Red Bull Racing, Christian Horner is out as team principal and CEO, effective Wednesday. The bombshell move comes at a tumultuous time for the Formula One team as it struggles to create a competitive car, sitting fourth in the constructors’ standings largely thanks to Max Verstappen’s performances this season.

Christian Horner oversaw the most dominant era in Red Bull Racing's Formula 1 effort, leading the team's effort to eight drivers' titles and six constructor titles in his 20 years as team principle. That all came to an end on July 9 though,