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.

The Formula 1 paddock was rocked Wednesday by the news that Christian Horner, the longtime CEO and team principal of Red Bull Racing, has been fired after a 20-year run that featured many race wins and championships with drivers like Sebastian Vettel and Max Verstappen.

After 20 years in that role, along with eight Drivers’ Championships and six Constructors’ titles, Horner was dismissed by the team on Tuesday, with official word coming out on Wednesday. According to Sky Sports F1 Horner gave a farewell speech at the team’s Milton Keynes factory on Wednesday, footage of which the outlet reviewed.