Max Verstappen's manager has told Red Bull that answers will be expected over their shock firing of F1 boss Christian Horner. The now-ex team principal had led the team since its inception in 2005, collecting 14 championships between the drivers' and constructors' titles before his abrupt departure this week.

Christian Horner, the longest-tenured team principal in Formula 1, is out after two decades. Here's what he told the team.