Novak Djokovic made light of a shoulder-injury scare and several concentration lapses to earn a straight-sets Wimbledon victory over Frenchman Gilles Simon.
Top seed Djokovic beat world No 44 Simon 6-4 6-2 6-4 in the third round, but only after shaking off damage to his left shoulder suffered in a tumble.
The world No 2 slipped several times on the worn baseline turf, hurting his shoulder in the third set and receiving extended courtside treatment.
Djokovic recovered quickly though, to progress to the fourth round thanks to a victory routine in all but his own wayward focus.
The Belgrade-born, six-time grand slam winner relinquished service break advantages in both the first and second sets – only to recover control in both scenarios.
Simon’s feeble second serve and moments of near-ineptitude gifted Djokovic sufficient control to breeze through relatively unscathed and book a last 16 showdown with another Frenchman, 14th seed Jo-Wilfried Tsonga.
Djokovic explained he had called for medical attention on court for reassurance he had not damaged his left-shoulder joint.
“I thought it was an awkward fall, I was just hoping there was nothing bad going on with the joint,” he said.
“Luckily there’s no damage in the joint, I could play a few games after that and just the muscle was quite sore because of the impact.
“But all in all I’m just very glad to get through.”
Tsonga, a semi-finalist in 2011 and 2012, saw off Taiwan’s Jimmy Wang 6-2 6-2 7-5.
The biggest casualty in the men’s draw so far is Tomas Berdych. The sixth-seeded Czech went down 7-6 (7/5) 6-4 7-6 (8/6) to 26th seed Marin Cilic in a third-round match that finished in fading light on Court Three at 9.36pm local time.
Also on Friday, 15th seed Jerzy Janowicz came through a five-set, second-round battle against former champion Lleyton Hewitt.
Australian Hewitt, who lifted the title in 2002, recovered from two sets down before Janowicz closed out a 7-5 6-4 6-7 (7/9) 4-6 6-3 victory in three hours and 47 minutes.
And 11th seed Grigor Dimitrov twice rallied from a set behind to reach the fourth round for the first time in his career with a 6-7 (3/7) 6-4 2-6 6-4 6–1 victory against 21st seed Alexandr Dolgopolov.