Third-seeded Rublev rallied to beat second-seeded Denis Shapovalov 4-6, 6-3, 6-4, and Coric also recovered in the semifinals to beat Milos Raonic 1-6, 6-1, 6-4. He trailed 2-5 early on and saved three set points at 3-5 in the opening set, which he went on to win in a tie break.
Germany's Alexander Zverev clinched his first title in over a year at Cologne while Russian Andrey Rublev went level with Novak Djokovic as a four-time title victor in 2020 with the St Petersburg Open trophy on Sunday.
SAINT PETERSBURG, Oct 17 ― Russia's Andrey Rublev edged closer to a place in the season-ending ATP Finals yesterday when he reached the last four in St Petersburg.
"What can I say, unbelievable job for the last couple of months", Coric said to Rublev on court.
The Croatian defeated 2015 champion Milos Raonic 1-6, 6-1, 6-4 in his semi-final.
He will face Russian Andrey Rublev in the semi-final on Saturday.
The World No. 10 levels his ATP Head2Head series against Shapovalov at 2-2.
"Sometimes our game style looks the same, we both play aggressively and we like to hit winners, so it's going to be tough but interesting".
Coric's appearance in Sunday's final will be his seventh final match on the ATP Tour. In his quarterfinal match against American Reilly Opelka, Coric was able to come back after going down 2-5 in the first set. His serve has been untouchable, although Coric is an excellent returner, and will probably be Raonic's toughest match to date.
The 22-year-old Rublev added the title in Russian Federation to trophies in Doha, Adelaide and Hamburg.
Djere, 25, won 7-6 (7/3), 7-5 against the Italian wildcard, having also previously won on clay in Rio de Janeiro previous year.
"I don't know if I ever played as badly as in the first set". It was a stark contrast to their fourth-round clash at the US Open six weeks ago, where Zverev won in three straight sets after just an hour and 34 minutes, 6-2, 6-2, 6-1.