Martin Brundle appeared on Sky Sports News shortly after the news broke, here's what he had to say:
“It’s completely out of the blue, given things that are going on and the sort of 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. Won an awful lot of races and World Championships for drivers and for the team, and even he took it from what was the Stewart team through Jaguar, and it was struggling, to a massive campus in Milton Keynes, and an awful lot of success and a huge trophy cabinet."