The top seeds Jannik Sinner and Gael Monfils are through to the final of the ATP 250 event in Sofia. World no. 14 Sinner is the defending champion, seeking the third title of the season and the fourth of his young career in the past 12 months.
Jannik took down Filip Krajinovic 6-3, 7-5 in an hour and 46 minutes in the semis, taking 17 points more than his opponent and rattling off five straight games from 5-2 down in the second set to remain on the title course.
The Italian got broken twice and took almost half of the return points to secure four breaks from eight opportunities and seal the deal in straight sets. Krajinovic suffered a break in the fourth game after spraying a backhand mistake and pulled it back with a break at 15 at 2-4 after forcing Sinner's error.
The Serb squandered game points in game eight and netted a backhand to fall 5-3 down and hand the opener to the Italian in the next one after another loose backhand.
Jannik Sinner and Gael Monfils are the last men stading in Sofia this week.
Filip survived the second set's third game, overpowering three break chances and numerous deuces to gain momentum and stealing Jannik's serve in game six.
Krajinovic held at love for a 5-2 advantage and looked good to force a decider. Out of a sudden, Sinner broke back at love in game nine and held at 15 with a service winner to lock the result at 5-5. Filip injured his right foot in the 11th game and experienced a break that sent Jannik closer to the finish line.
Needing no second invitation, Sinner brought the next game home at love to move over the top and advance into his fifth ATP final. Gael Monfils is through to his 32nd ATP final following a 7-5, 6-0 victory over Marcos Giron in 63 minutes.
The Frenchman dropped 12 points in nine service games and suffered one break, trailing 4-2 in the opener before taking nine of the final ten games to storm over the American and reach the title clash. World no. 67 Giron made a strong start, breaking in the fifth game and defending break chances in the next one to forge a 4-2 lead.
Gael broke back in game eight and again at 6-5 with a backhand down the line winner that secured the opener for him. With momentum on his side, the Frenchman is the only player on the court in set number two, dropping four points in six games to deliver a bagel and race over the finish line to join Sinner in the title clash.