An F1 insider has opened up about an alleged heated argument between Christian Horner and Max Verstappen's father.

Horner leaves Red Bull with eight Drivers' Championship and six Constructors' Championship trophies under his belt, having overseen one of the greatest dynasties in modern F1 history in the ground effect era. His replacement, Laurent Mekies, has an unenviable task on his hands.

Form has dipped on track following the departure of technical supremo Adrian Newey, and a very public spat between Horner and Jos Verstappen, father of four-time world champion Max, has played out for all to see.