George Russell has admitted his surprise at just how slow Mercedes were during Saturday's sprint race at the Brazilian Grand Prix.
Having struggled for much of the weekend to battle for the front two rows of the grid in both Friday and Saturday qualifying, the team were expecting their strong race pace to put them into contention during the sprint race.
Perhaps even more shockingly, Russell was over 20 seconds behind McLaren's Lando Norris in second, whilst team-mate Lewis Hamilton could only finish seventh having been overtaken by the AlphaTauri of Yuki Tsunoda.
"The pace we were missing was surprising," he told DAZN after the sprint race.
"The degradation was not worse than expected. The wheels are very difficult to understand. Sometimes the teams are fast and, suddenly, they become slow. We will see tomorrow.
"Today was the weakest pace we've had all season."