Max Verstappen stood by his father Jos, saying “he is not a liar” following his explosive claim that Red Bull could explode if Christian Horner remains as team principal.

Speaking ahead of this weekend’s Saudi Arabian Grand Prix, Verstappen was asked if his father regretted his remarks, which not only cast further doubt over Horner’s future, but of his son.

“I have not asked him that but my dad, from how I know him in go-karting, is very outspoken and he is not a liar, that is for sure.

“My dad and I are very close. We call every day.”

Verstappen’s manager Raymond Vermeulen met with Horner earlier this week in an attempt to clear the air at the crisis-hit team. Neither Max, nor Jos, were present.

And Verstappen added: “I don’t see myself in F1 without them (his father and manager) by my side.”