Novak Djokovic may have to beat Jannik Sinner and Carlos Alcaraz to clinch a record-equalling eighth Wimbledon title - but he remains in the hunt after winning on Monday

John McEnroe is on the call of the Carlos Alcaraz-Andrey Rublev Round of 16 match at Wimbledon on Sunday. Alcaraz, the No. 2 seed in the tournament, is rolling toward what looks like a four set victory.

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.