Serbia's Novak Djokovic reacts during his fourth round match against France's Adrian Mannarino at Wimbledon Championships in London, Britain on July 11, 2017. [Photo/Agencies]

The second-seed took a 3-0 lead in the second but Mannarino broke back in the seventh game and took the contest to a tie-break. Both players struggled to hold serve but Djokovic won five of the last six points to triumph.

The Serb, who will face Czech Tomas Berdych in the last eight, got his nose in front with a break in the third game of the third set and never looked in danger from then on.

The only worry for Djokovic was the pain from his shoulder, which required medical treatment during the third set.

"We'll see. It has something which has been dragging back and forth for a while, but I am still managing to play," he said.

Reuters