Djokovic, who defeated Adrian Mannarino in the fourth round, said the courts are among the worst he's played on in his 13 years at the All England Club.
Djokovic says Wimbledon courts 'not that great' this year →
"I think that after a while, I realized that playing full power was useless against Novak because he was responding well," Mannarino said. "He was moving well. When I tried to slow the game down, I think that I was feeling more comfortable."
Djokovic reaches Wimbledon quarters with injured shoulder →