Red Bull abruptly fired longtime team principal Christian Horner on Wednesday, July 9, ending a 20-year stint that included eight Formula 1 drivers' titles and recent turmoil that rocked the team on and off the track.

The former Red Bull driver has opened up on why everything fell apart for the team last year, which followed his exit.

From an investigation into his management to plummeting car performance, this is everything that preceded the departure of Red Bull boss Christian Horner