Russian third seed Andrey Rublev won his fourth ATP Tour title of the year when he beat Croatia's Borna Coric 7-6(5) 6-4 to lift the St Petersburg Open trophy on Sunday.

It was deja vu for Coric as he finished runner-up in St Petersburg to a Russian again after a straight sets loss to Daniil Medvedev last year.

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Rublev was flawless on his serve and never gave Coric a break point opportunity. After the opening set went with serve, Rublev clinched it on the tiebreak despite being 2-5 down before converting a break point in the second to emerge victorious.

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Victory also gave Rublev a big push in his quest to qualify for next month's season-ending ATP Finals for the first time and the Russian will move up to eighth in the world rankings.

Two spots remain to be filled as Rublev leads Argentina's Diego Schwartzman, who currently occupies the final qualification position.

World number one Novak Djokovic, French Open champion Rafael Nadal, US Open winner Dominic Thiem, Stefanos Tsitsipas, Daniil Medvedev and Alexander Zverev have already qualified for the ATP Finals.

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