Ferrari’s Carlos Sainz converted his maiden pole position into a first career Formula One victory on Sunday at a British Grand Prix overshadowed by a massive early crash for Chinese driver Zhou Guanyu. Zhou was clipped by the Mercedes of George Russell in a furious opening from the green light and his Alfa Romeo flipped over, skidded off the gravel and thumped into the Silverstone track’s protective fence. He was eventually released from the medical centre without serious injury though Williams driver Alex Albon was transferred to hospital after also suffering a high impact crash. Sainz was ai…