Tyre-warming blankets were originally meant to be banned from next season onwards, until the rules were later amended so that they will remain – but with the option for the FIA to re-impose the ban after a final decision is made by the end of July.
Mercedes driver Russell was one of four drivers to take part in a crucial Pirelli test at Barcelona in the week following the Spanish GP, along with Mercedes reserve Mick Schumacher and Ferrari’s Charles Leclerc and Carlos Sainz.
