Novak Djokovic experienced a shocking opening set against Alex de Minaur in the fourth round at Wimbledon. Two rivals battled on Centre Court, and the Aussie stunned the legend 6-1 in the opener in just half an hour.

John McEnroe was highly critical of Novak Djokovic's performance during the early stages of his Wimbledon fourth-round clash with Alex de Minaur.

Djokovic served four double faults, directed less than half of his first serves in, won only 18 per cent of the points on his second serve and racked up a whopping 16 unforced errors during a first half-hour which had the Centre Court crowd in shock.