Djokovic prepared for Del Potro fight
The second seed is looking to make it 42 matches unbeaten, 40 of them this year, which would leave him only two behind John McEnroeās record, set in 1984.
Djokovic said: āItās going to be a great match, a battle. He has always had the quality to be at the top of the menās game. He plays equally well on any surface, he has a big serve, great groundstrokes. For his height, he moves really wellā.