Former 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 cruised into the Athens ATP final with a 6-3, 6-4 victory over Yannick Hanfmann on Friday.

Novak Djokovic returned after three weeks out of action to ease past Alejandro Tabilo in straight sets at the Athens ATP tournament on Tuesday.

Novak Djokovic announced on Tuesday he would miss the upcoming Paris Masters, but added he hoped to compete at the tournament next year.

Novak Djokovic had a relatively straightforward victory at the Shanghai Masters for a change as he beat unseeded Zizou Bergs 6-3, 7-5 to reach the semifinals.

Novak Djokovic banished exhaustion and played through an ankle injury scare Tuesday to make it to the quarterfinals of the Shanghai Masters, beating Spain's Jaume Munar 6-3, 5-7, 6-2.

Defending champion Jannik Sinner retired on Sunday from the Shanghai Masters after suffering from cramps in his third-round match against the Netherlands' Tallon Griekspoor.

Big-serving Frenchman Giovanni Mpetshi Perricard upset fourth-ranked Taylor Fritz 6-4, 7-5 and advanced to the fourth round of the Shanghai Masters on Sunday.

Novak Djokovic said he had to "fire up all engines" as he overcame a stodgy first set to reach the third round of the Shanghai Masters on Friday, beating fellow veteran Marin Cilic.