Mercedes suffered a disqualification in the Belgian Grand Prix after George Russell’s car was found to be underweight in the FIA post-race checks. A few hours after the chequered flag fell at Spa Francorchamps, the FIA found Russell’s car to be 1.5kg under the legal minimum weight of 798kg. As it was an infringement of the F1 technical regulations, it warranted a standard disqualification penalty from the stewards. It caught Mercedes by surprise, with trackside engineering director Andrew Shovlin admitting they did not know the root cause and would investigate in the days after. There were no …