Christian Horner has been fired by Red Bull's Formula 1 team and it only adds to speculation about the future of four-time champion Max Verstappen.

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.

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.