We knew this would be a very tough race and so it proved. We were able to run at a good level of performance at the beginning of the race, notwithstanding a minor incident for Nico when he ran straight on at Turn 14 in the second stint. We then experienced a near-simultaneous failure of the MGU-K on both cars just after half distance, which was apparently caused by an issue in the high-voltage Control Electronics which manage the MGU-K. This meant both cars lost hybrid power from this point onwards and, without the additional braking force of the MGU-K, this also put a much higher load on the rear brakes. Lewis then suffered a complete rear brake failure after his second pit stop, which was a consequence of the MGU-K fault. Nico was not affected in the same way and managed incredibly to maintain position from lap 37 to lap 67, making up time in the first and second sectors in order to defend in sector three, when he was considerably down on power. This was achievable against the Force India but not the Red Bull after Ricciardo finally passed Perez. It is disappointing to see our run of race wins and 1-2 finishes come to an end. Nevertheless, we will regroup for the next race and will be determined to arrive in Austria in an even stronger position.