Martin Brundle has revealed that Christian Horner, the architect behind Red Bull’s Formula 1 empire, was dismissed without any explanation from the company he led to global success.
The shockwaves from Horner’s sudden exit are still reverberating throughout the F1 paddock, not least because even the team’s longtime boss is in the dark as to why his reign ended so abruptly. Speaking in the aftermath of the announcement, Brundle described his personal exchange with Horner.
“They [Red Bull] didn’t explain why he was fired,” Brundle told Sky Sports News, “I have to talk to Christian later. I texted him saying, ‘I’m sorry to read that.’
“I actually said, ‘Can we have a chat before it goes on TV?’ Because I wanted to hear more from his perspective, and he couldn’t. What he did tell me is that they didn’t explain why he was fired. So that’s the only reliable information I have on the matter.”
The lack of transparency has cast an air of uncertainty around Milton Keynes. Horner, who built Red Bull Racing from a mid-tier outfit into a juggernaut boasting 124 wins, eight drivers’ championships, and six constructors’ titles, was asked to leave with immediate effect.
Team staff were left stunned as he addressed the factory one last time, giving an emotional speech that, according to Sky Sports’ David Croft, drew a standing ovation and left many in tears.
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The confusion within the team has only added to the sense of upheaval. Horner reportedly informed staff at 10am before departing just over an hour later. Red Bull’s corporate office in Salzburg took over all communications, while staff at the UK factory remained tight-lipped.
Brundle’s comments underline how the news has left both the workforce and the paddock searching for answers.

Fault Lines and Unresolved Tensions
While no official reason has been given, there are clear signs of trouble that have been brewing behind the scenes. The past 18 months have seen a series of major departures – Adrian Newey, Jonathan Wheatley, and Rob Marshall among them – alongside public tension with the Verstappen family. Red Bull’s on-track dominance has faded in 2025, and rumours of an internal power struggle have only intensified.
Sky Sports have pointed to the divided ownership between Mark Mateschitz and Chalerm Yoovidhya, with the latter’s support for Horner reportedly fading over time. Allegations of misconduct, internal investigations, and a performance dip added further strain. But for Brundle, the mystery remains: “The only thing I know for certain is Christian says they did not give him a reason.”
With Horner’s legacy still fresh, speculation about his next move is already underway. The British team principal may take a step back, but rumours persist about potential roles at Ferrari or Alpine, even if personal and family considerations could keep him in the UK for now.
What is clear is that Horner’s dismissal – delivered without cause, at least according to his account—marks the end of an era, but leaves a vacuum of information. “He’s done an incredible job for the last 20 years,” Brundle reflected, “but it’s not been difficult to feel in the Formula 1 paddock, and to observe, and to hear, that things were not particularly rosy.”
For now, the biggest question in Formula 1 is not simply what’s next for Christian Horner, but why exactly Red Bull let him go without so much as an explanation.


