The pair were battling over sixth place, with the Mercedes driver harrying the rear of Alonso’s Aston Martin.

However, with two laps remaining, Russell crashed out at Turn 6 to draw a Virtual Safety Car under which the race would finish.

The impact pushed the Mercedes back out onto the race track, where one of its wheels went under the tub, perching it on its side – the floor facing the oncoming traffic.

Alonso claimed a battery issue had compromised his entry into the corner, which saw Russell crash as he attempted to take avoiding action.

However, stewards disagreed with that version of events detailing their findings in a lengthy report critical of Alonso.

“Car 63 (George Russell) was following Car 14 (Fernando Alonso) approximately 0.5 seconds behind as the cars approached turn 6. Alonso explained to the stewards that he intended to approach turn 6 differently, lifting earlier, and with less speed into the corner, to get a better exit,” it outlines.

“Russell explained to the stewards that from his perspective, Alonso’s manoeuvre was erratic, took him by surprise and caused him to close distance unusually fast, and with the resulting lower downforce at the apex of the corner, he lost control and crashed at the exit of the corner.

“There was no contact between the cars.

“Telemetry shows that Alonso lifted slightly more than 100m earlier than he ever had going into that corner during the race.

“He also braked very slightly at a point that he did not usually brake (although the amount of brake was so slight that it was not the main reason for his car slowing) and he downshifted at a point he never usually downshifted.

“He then upshifted again, and accelerated to the corner before lifting again to make the corner.

“Alonso explained that while his plan was to slow earlier, he got it slightly wrong and had to take extra steps to get back up to speed.

“Nonetheless, this manoeuvre created a considerable and unusual closing speed between the cars.

“In considering the matter the stewards focused solely on the wording of the regulation which states ‘At no time may a car be driven unnecessarily slowly, erratically or in a manner which could be deemed potentially dangerous to other drivers or any other person.’ (Art 33.4)

“Specifically, in this case, the stewards have not considered the consequences of the crash.

“Further, the stewards considered that they do not have sufficient information to determine whether Alonso’s manoeuvre was intended to cause Russell problems, or whether as he stated to the stewards that he simply was trying to get a better exit.

“Should Alonso have the right to try a different approach to the corner? – yes. Should Alonso be responsible for dirty air, that ultimately caused the incident? – no.

“However, did he choose to do something, with whatever intent, that was extraordinary, ie lifting, braking, downshifting and all the other elements of the manoeuvre over 100m earlier than previously, and much greater than was needed to simply slow earlier for the corner? – yes by his own account of the incident he did, and in the opinion of the stewards by doing these things, he drove in a manner that was at very least ‘potentially dangerous’ given the very high speed nature of that point of the track.

“This season, the FIA Formula 1 penalty guidelines, including for this breach have been reset and increased to a baseline of a 10s penalty,” the stewards’ added.

“In addition, when there is some aggravating circumstance, we consider a Drive Through Penalty.

“In this case we consider that Alonso affirmatively choosing to perform an unusual manoeuvre at this point to be an aggravating circumstance, as opposed to a simple mistake.

“The stewards therefore order a drive-through penalty, which will be converted to 20 seconds added to Car 14’s elapsed time, along with three penalty points.”

Alonso was provisionally classified sixth, however, the addition of a 20s penalty will drop him to eighth.