Perez confident qualifying issues fixed

Sergio Perez believes he will be able to produce an improved qualifying performance for the British Grand Prix at Silverstone, with Sauber making changes to solve the braking problems that have plagued him in recent sessions. The Mexican was only able to qualify 15th on the grid for the last two races at Montreal and Valencia, with team-mate Kamui Kobayashi able to get into Q3 in Spain. Perez feels the problems were down to the Sauber's brakes and believes the team have now sorted out the problem ahead of this weekend.

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