Italy's Jannik Sinner swept past French veteran Gael Monfils to successfully defend his Sofia title on Sunday and boost his chances of reaching the ATP Finals.
Top seed Sinner, 20, won 6-3, 6-4 to claim his fourth career title as he sights a spot in the season-ending ATP finale to be staged in Turin from November 14-21.
"The level was high today," Sinner who on Monday will move into 10th place in the race for the eight-man Turin field.
"We had long, long rallies and it was physical as well. I am happy to be the winner here in Sofia again.
"It was the best match I have played this week because I had to."
Sinner has now won three titles in 2021 after success in the Great Ocean Road Open and Washington.