Indian GP: Sauber Sunday quotes

Sergio Perez - DNF: "Today was a total disappointment. First of all I had to pit after 14 laps because the front left tyre was blistering badly. We don't know yet why this happened. I wanted to recover the lost positions but touched Daniel Ricciardo's front wing when I overtook him. The rear right tyre came off the rim and damaged something at the rear of the car. So my race was over after 20 laps."

Monisha Kaltenborn, Team Principal: "A disappointing race. Kamui fought hard but his grid position was too much of a handicap. Sergio made a good start but then had unexpected problems with his front left tyre. After an early pit stop he had a puncture and was forced to stop because the car felt strange. Our goal to fight for fifth position in the constructors' championship will now be more difficult to achieve."

Giampaolo Dall'Ara, Head of Track Engineering: "Sergio's speed was as expected, but then he had to stop early because the front left tyre had blisters and we had to change to a two stop strategy. He went out on another set of soft tyres, but then had contact with Daniel Ricciardo's car and had a puncture. After his second pit stop he reported problems with the rear of the car and we decided to retire him. Kamui had to start too far behind and, although he had better pace than Daniel, he was not able to overtake him and lost too much time in the first part of the race. Kamui was not able to recover from that."