Watching the Grand Prix earlier, I could see that Lewis Hamilton had a problem with his tyres. the fact that one driver unlapped himself to overtake Hamilton was a give away, so was the fact that his times suddenly dropped by about 10 seconds a lap, and the biggest sign was that his back right tyre was started to disintegrate. As Marton Brundle commented "the back right tyre is delaminating itself", yet McLaren made Hamilton stay out for another lap. And then his tyres are in such a state he cannot get round a corner to get in to the pits.
I feel sorry for Hamilton. He was relying on his team and they let him down.