Novak Djokovic sends message of intent at US Open with comeback from brink

• Serb beats Laslo Djere 4-6, 4-6, 6-1, 6-1, 6-3 to make fourth round
• The message is I'm still able to play five sets deep at night'

Novak Djokovic hopes his third-round comeback from two sets down against Laslo Djere in the early hours of Saturday morning will send a firm message to the locker room, and any future opponents, about his endurance and readiness as he continues to seek out a 24th grand slam title.

The message is sent to the rest of the field that I'm still able to play five sets deep at night," he said. Coming from two sets down always sends a strong message to the future opponents.