Novak Djokovic battled from a set down to beat Italian Lorenzo Musetti in the final of the Hellenic Championships in Athens and win the 101st title of his career.
The 24-time Grand Slam champion said he felt "proud" to come through a grueling three-hour encounter, eventually getting over the line 4-6 6-3 7-5.
Djokovic, 38, shared a long word with Musetti at the net after the second seed fell to a sixth consecutive defeat in finals and missed out on a place at the season-ending ATP Tour finals as a result.
On a day of thrilling tennis on the ATP tour, Great Britain's Cameron Norrie missed out on a sixth career title as American teenager Learner Tien roared back to claim his first via a deciding set tie-break at the Moselle Open in France.
Thirty-year-old Briton Norrie, who was aiming for his first title in more than two years, produced a gutsy display to battle from a set down, then a break down in the deciding set.
And he led 5-1 in the tie-break before letting 19-year-old Tien back into it with a series of unforced errors, eventually losing 6-3 3-6 7-6 (8-6).