Djokovic, Zverev in last 16

German second seed Alexander Zverev saved a match point in coming back to defeat Bosnia's Damir Dzumhur in five sets to reach the French Open fourth round on Friday, while former champion Novak Djokovic made the last 16 of a Grand Slam for the 43rd time.

World number 29 Dzumhur also served for the match in the fourth set, but Zverev clung on and claimed a 6-2, 3-6, 4-6, 7-6 (7/3), 7-5 victory.

Zverev, 21, who is seen as the main threat to Rafael Nadal's expected coronation as champion for an 11th time, endured a nightmare outing on Court Philippe Chatrier that lasted almost four hours.

He hit 73 unforced errors, dropped serve eight times and served up seven double faults.

Djokovic claimed a hard-fought 6-4, 6-7 (6/8), 7-6 (7/4), 6-2 victory over a grieving Roberto Bautista Agut.

The 31-year-old former world number one struggled at times on Suzanne Lenglen court, but eventually came through the four-set battle in three hours and 48 minutes.

Djokovic has now made the last 16 of a Slam for the 43rd time, tying Jimmy Connors on the all-time list, second only to Roger Federer's tally of 60.

Djokovic, seeded 20 after struggling to find his best form since returning from an elbow injury, will take on Fernando Verdasco for a last-eight place after the Spaniard knocked out fourth seed Grigor Dimitrov.

The 34-year-old Verdasco inflicted an early exit on Dimitrov, with the Spaniard winning 7-6 (7/4), 6-2, 6-4 in his 350th clay-court match.

Japan's Kei Nishikori made short work of home hope Gilles Simon as he cruised into the fourth round for the fifth time.

The 28-year-old, seeded 19 in his first Grand Slam since Wimbledon last year after struggling with a wrist injury, saw off Simon 6-3, 6-1, 6-3.

In the women's draw, Australian Open champion Caroline Wozniacki eased past Frenchwoman Pauline Parmentier 6-0, 6-3.

The second seed, a quarter-finalist in Paris last year, will face Daria Kasatkina for a place in the last eight after the Russian beat Maria Sakkari 6-1, 1-6, 6-3.