Tyres are displayed at the Nurburgring racetrack on July 4, 2013 in Nurburg ahead of the German Formula One Grand Prix. Pirelli is to strengthen its tyres for the German Grand Prix after a series of dangerous blow-outs at Silverstone led to calls for urgent action, the Italian manufacturer announced this week. AFP PHOTO / TOM GANDOLFINI (Photo credit should read Tom Gandolfini/AFP/Getty Images)
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AFP TOM GANDOLFINI