A former F1 world champion has taken to social media to express his doubts over the future of Red Bull in the wake of a turbulent week for the team. Christian Horner was sensationally relieved of his duties as team principal on Wednesday, with former Racing Bulls boss Laurent Mekies stepping into the position with immediate effect.

In less than two years, a championship-caliber team has disintegrated, Horner’s surprise sacking on Wednesday being the denouement.