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 shocked Centre Court.

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

Novak Djokovic is facing off against Alex De Minaur at Wimbledon, a year on from the Australian's injury-enforced withdrawal from their quarter-final clash