Sergio Perez: "I feel very sad about the lost opportunity today. On lap one I was coming out of turn three, picking up the power and all of a sudden I felt a hit. I didn't know who it was and then the team told me it was Esteban. I feel so bad for the team because we really need to be scoring points at every race and it should have been a great day for us. After that the race became quite tricky and I soon realised it was going to be difficult to score points. I think we underestimated how difficult it would be to overtake the Williams and Sirotkin was defending very hard and moving around under braking. When I finally got alongside him, I tried to close the door a bit too early and we made contact. It's a weekend to forget and I am really sorry for what happened and the points we have lost today."

Esteban Ocon: "It's a huge disappointment to be out of the race early when we had such strong pace. The car felt great this weekend and we knew a strong result was possible, but instead we're leaving Singapore with zero points. I am not going to analyse what happened at the start. All I will say is that I got off the line well and I saw an opportunity to go past Sergio. I had good grip on the outside, but then I felt a hit and I was in the wall. The only positive from tonight is that we have a strong car and we can be back scoring well in Russia. There are still six races remaining to score as many points as we can, so we will turn the page and keep working hard for the next race."

Otmar Szafnauer: "An extremely disappointing race. It's unacceptable for teammates to hit each other and it has cost us dearly. They didn't leave each other enough room and the contact put Esteban into the wall. We will therefore reinstate the rules of engagement we operated last year after similar incidents, which means they cannot race each other. This disastrous race is all the more frustrating when you consider the speed we showed in qualifying and the opportunity that has passed us by. These painful lows are part of racing and it's fair to say that there are very few positives to take from tonight apart from the car pace. We will have some discussions behind closed doors and will learn from what happened so that we can become stronger as a team."

Check out our Sunday gallery from Singapore, here.