Lewis Hamilton's Canadian Grand Prix preparations suffered a setback after a rare error from the five-time world champion prematurely ended his Friday practice.
After topping the first practice session of the day, Hamilton limped back to the pits half an hour into the afternoon's track time with a tyre puncture. The Mercedes driver had got loose through the chicane at Turn 8/9 after hitting a sausage kerb on the inside of the corner. That put his car off balance and meant he carried too much pace through the exit.
Hamilton opened his radio channel after the incident to say simply: "Sorry, guys.