Roger Federer suffered a shock defeat at the hands of Grigor Dimitrov in the quarter-finals at the US Open. The 20-time grand slam winner had looked destined for a box-office final against Rafael Nadal in what would have been the great rivals’ first meeting at Flushing Meadows. But Bulgarian Dimitrov tore up that script with a first ever win over the Swiss, who needed a medical time-out and looked out of sorts throughout a five-set defeat. Punters on Arthur Ashe for the night session might have feared being short-changed after Serena Williams ran through Wang Qiang in 44 minutes. After all, Dimitrov had not […]