McLaren pair's problems with medium tyres

This weekend, for the first time, Pirelli have provided a medium compound tyre which proved problematic in practice, especially for the McLaren drivers.

Jenson Button, who thinks that they are too hard for the Valencia circuit, commented: "The car's balance is good on soft tyres, and we've got no complaints, but we've still got loads to do with the harder tyre which works differently, and that makes life difficult."