Red Bull team principal Christian Horner has joked that he has blocked Toto Wolff on his phone after the Mercedes chief claimed he is "living in his head rent-free".
Horner and Wolff have a storied rivalry, with their two teams going to war in recent years in pursuit of the F1 world title. Things came to a head during the close-fought 2021 season, which saw the pair regularly involved in heated exchanges and clashes between their drivers.
That season ended with Red Bull's Verstappen controversially beating Mercedes' Lewis Hamilton to the world title. Since then, Red Bull have dominated the sport, while Mercedes have struggled to compete with their rivals.
