British tennis great Andy Murray said Monday he was "disappointed" with Novak Djokovic's results while coaching his former rival.

Novak Djokovic won the 101st title of his career when he came from behind to beat Lorenzo Musetti 4-6, 6-3, 7-5 in the final of the ATP event in Athens on Saturday.

Novak Djokovic dropped serve for only the second time in the competition but still cruised into the final of the ATP event in Athens with a 6-3, 6-4 victory over Yannick Hanfmann on Friday.

Novak Djokovic will take on Carlos Alcaraz in the group stage of the upcoming ATP Finals while Jannik Sinner could face a derby with Lorenzo Musetti during his title defence at the season-ending tournament.

Djokovic had joined Pilic's academy in Germany when he was 12.

World number one Aryna Sabalenka told AFP that she needs to improve her tennis "in literally everything" and how Novak Djokovic is helping her do it on and off the court.

The 24-time Grand Slam champion said he shared mutual respect with Nadal and Roger Federer, but closeness was never possible among fierce competitors.

Djokovic took medical timeouts during both sets.

Novak Djokovic will return to action in Shanghai next month in his first tournament since his US Open semifinal defeat by Carlos Alcaraz, organisers of the Masters tournament said.

Novak Djokovic vowed to "continue fighting" for Grand Slam titles after his US Open semifinal exit to Carlos Alcaraz on Friday.

Carlos Alcaraz said he is increasingly learning what it takes to consistently play his best tennis as he dispatched Novak Djokovic in straight sets on Friday to reach a second US Open final.

Djokovic will meet Alcaraz in the last four with the 22-year-old Spaniard in blistering form.

Carlos Alcaraz powered into the US Open semifinals to set up a potential showdown with Novak Djokovic on Tuesday as Jessica Pegula punched her ticket to the last four.

Carlos Alcaraz marched into the quarter-finals of the US Open on Sunday.

Novak Djokovic made history at the age of 38 on Sunday after his 6-3 6-3 6-2 victory over Jan-Lennard Struff in the last 16 of the U.S. Open saw him become the oldest man to reach the quarter-finals at all four Grand Slams in a single season.

Carlos Alcaraz and Novak Djokovic edged closer to a semifinal showdown at the US Open on Friday as Aryna Sabalenka avenged the memory of a bitter defeat to power into the last 16.

Carlos Alcaraz stormed into the third round of the US Open with a blistering straight-sets victory on Wednesday as Novak Djokovic overcame an early scare to advance.

Novak Djokovic battled past American qualifier Zachary Svajda in four sets on Wednesday to reach the US Open third round for a record-equalling 19th time.

Former tennis world number one Novak Djokovic says the expansion of most ATP Masters 1000 events to 12 days makes them "just way too long for me" as he focuses on his pursuit of a record 25th Grand Slam title.

Carlos Alcaraz was put on a US Open collision course with Novak Djokovic on Thursday as the draw for the men's and women's singles tournaments were revealed.