Pirelli announce tyre changes for German Grand Prix

Pirelli have confirmed that they will make changes to their rear tyres for this weekend's German Grand Prix.

The company came under pressure over the weekend following four blowouts during the British Grand Prix at Silverstone.

Lewis Hamilton was among a number of drivers who hit out at the lack of safety because of such incidents.

Pirelli will now modify the specifications of their wheels ahead of Sunday's race at Nurburgring.