Daniil Medvedev defeated world number one Jannik Sinner in five sets on Tuesday to reach a second successive Wimbledon semi-final, subduing the gallant challenge of the Italian, who suffered a worrying mid-match health scare. The fifth-ranked Medvedev triumphed 6-7 (7/9), 6-4, 7-6 (7/4), 2-6, 6-3 to avenge his Australian Open final loss to Sinner in January. His four-hour victory also ended a five-match losing streak against the Italian as Medvedev reached his ninth Grand Slam semi-final. The 28-year-old former US Open winner will face either defending champion Carlos Alcaraz or Tommy Paul of the United States for a place in Sunday's final. In a tight first set in which neither man gave up a break point, Medvedev edged ahead in the tie-break on the back of a lung-busting 33-shot rally.