Martin Brundle has claimed that a lack of harmony in the Formula One paddock preceded Christian Horner's exit from Red Bull. Horner has been sacked as the team principal after 20 years.

Brundle told Sky Sports: "It's completely out of the blue, given things that are going on, and there are problems in the team. Words were getting out of Team Verstappen and others. I'm quite sad about it, if I'm honest. I consider Christian a friend and he's done an incredible job there for 20 years.

"He's won an awful lot of races and world championships for drivers and for the team. He took it from what was the Stewart team, through Jaguar, and it was struggling, to a massive campus in Milton Keynes. There was an awful lot of success and a huge trophy cabinet.

"But it's not been difficult to feel in the Formula One paddock and to observe and to hear that things were not particularly rosy."

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