India, July 9 -- Red Bull fired Christian Horner, who served as team principal for 20 years. Having taken over the Red Bull team in Formula One in 2005, Horner has been the head of the team's successful runs at the beginning of the 2010s and the present decade.

The team's environment has become more stressful, according to Red Bull sources who spoke to ESPN.

The British Grand Prix, the Austrian Grand Prix, and the team's home event saw a number of meetings over the last two weekends, sources told ESPN.

Oliver Mintzlaff, a prominent member of the firm's corporate side who has long advocated for an overhaul in Red Bull's racing organization's leadership, was involved in at least one of them with Verstappen.

Christian Horner disclosed th...