Red Bull motorsport adviser Helmut Marko has pledged not give up on the Formula 1 title fight until it's mathematically impossible for Max Verstappen to win, even after Christian Horner was fired as team principal.

Frenchman Laurent Mekies got down to work as Red Bull team principal on Thursday, a day after replacing Christian Horner, and recognised big challenges ahead for the once-dominant former champions.

The second annual Red Bull Championship Run takes place Saturday at Spruce Street Harbor Park. Thousands of Philly fans took to the streets after Brandon Graham and the Eagles won Super Bowl LIX — and some attempted to climb the poles.

Ralf Schumacher highly doubts any possibility of Sebastian Vettel becoming Helmut Marko's successor at Red Bull. Schumacher commented on the rumours surrounding the four-time World Champion, but doubted them due to Vettel's new way of life.

Red Bull Racing are predicting an uptick in performance after "intensive discussions" with driver Yuki Tsunoda.