Fernando Alonso and Sebastian Vettel agree on Max Verstappen penalty in Red Bull row

Fernando Alonso and Sebastian Vettel have claimed Max Verstappen should not be stripped of his world title despite Red Bull breaking F1 rules. The former world champions have both thrown their support behind the Dutchman who faces questions over the validity of his title win in 2021.

Speaking to , Vettel said: "The best would be to be transparent so that everyone can see what happened. Otherwise people are talking and speculating. In this regard, the FIA ​​should take a quick and clear decision, otherwise it's a bit stupid.

No one doubts [Max] will be the world champion in 2021." This comes after Red Bull were found guilty of breaching F1's strict budget cap last season.

The team spent less than 5% over the total limit, which means they are guilty of a minor transgression. This is understood to be below the threshold for major penalties such as point deductions which could affect Verstappen's crown.

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However, that hasn't stopped some F1 fans, including Lewis Hamilton supporters, from demanding that the FIA ​​overturn Verstappen's success. Alonso also supported the Red Bull star, pointing out that the team had only exploited "grey areas" in the regulations.

He said the gray areas used to be aerodynamic, but have now become financial. He explained: "It's the nature of Formula 1. All world champions exhaust the [grey] areas."

Red Bull has yet to learn the extent of the penalty it will face for breaking the rules. This is expected to take the form of a financial penalty such as a heavy fine.

However, Sky Sports host Ted Kravitz has suggested that rival team managers seek a much harsher punishment to set an example for others.

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He claims others are pushing for Red Bull to be removed from this season's constructors' standings and forfeit any prize money. Additionally, other team bosses want to see Red Bull pushed to the back of pit lane to prevent others from breaking the rules in the future.

Hamilton also stressed that the FIA ​​must take steps to prevent future incidents.

He commented: "I think the sport needs to do something about this in the future, otherwise if they're relaxed enough...if they relax with these rules then all the teams would go over, spend millions more and then just having a slap on the wrist, obviously isn't going to be good for the sport. They might as well not have a cost cap in the future."