Dominic Thiem claims his third title of the season, defeating Martin Klizan on Sunday for the first time in four tries.

Matteo Berrettini and Fabio Fognini capture their first team title on their team debut at the St. Petersburg Open.

Matteo Berrettini and Fabio Fognini defeat Roman Jebavy and Matwe Middelkoop in straight sets at the St. Petersburg Open on Sunday.

Mikhail Youzhny contested three St. Petersburg Open finals, lifting the trophy in 2004.

Mikhail Youzhny end his career with 499 tour-level victories.

Mikhail Youzhny retires at the 2018 St. Petersburg Open with 10 titles from 21 tour-level finals.

Dominic Thiem defeats Roberto Bautista Agut in straight sets at the St. Petersburg Open on Saturday.

Martin Klizan defeats Stan Wawrinka in three sets at the St. Petersburg Open on Saturday.

Defending champions Roman Jebavy and Matwe Middelkoop advance to the St. Petersburg Open final.

Dominic Thiem sets a semi-final at the St. Petersburg Open by ousting the last Russian remaining, Daniil Medvedev.

Stan Wawrinka advances to his first semi-final since February with a victory against defending champion Damir Dzumhur.

Martin Klizan defeats #NextGenATP Canadian Denis Shapovalov in St. Petersburg to reach his second tour-level semi-final of the season.

Russian Mikhail Youzhny finishes his career on Thursday with 499 wins.

Dominic Thiem advances to the quarter-finals in St. Petersburg after defeating German Jan-Lennard Struff in straight sets.

#NextGenATP Canadian Denis Shapovalov advances to his fourth tour-level quarter-final of the season with a three-set win on Thursday.

Joao Sousa touches the toes of one of the Hermitage Museum’s famous statues, which is believed to bring good luck, during the visit in St. Petersburg.

Andrey Rublev, Daniil Medvedev and Joao Sousa pose for a photo on Wednesday at the Hermitage Museum.

Andrey Rublev, Daniil Medvedev, Joao Sousa and their teams go on a guided tour of the Hermitage Museum in St. Petersburg on Wednesday.

Joao Sousa and Russians Andrey Rublev and Daniil Medvedev post with the St. Petersburg Open trophy on Wednesday.

Stan Wawrinka beats Karen Khachanov during their first FedEx ATP Head2Head meeting on Wednesday in St. Petersburg.

Denis Shapovalov celebrates winning on his debut at the St. Petersburg Open tournament on Wednesday with victory over Adrian Menendez-Maceiras.

Damir Dzumhur defeats Lucas Miedler in straight sets at the St. Petersburg Open on Tuesday.

Top seed Dominic Thiem and Russian No. 1 Karen Khachanov could meet in the St. Petersburg Open championship match.

Boris Sobkin, the coach of Mikhail Youzhny since 1993, oversees a practice session at the St. Petersburg Open.

Stan Wawrinka will next play in-form Russian Karen Khachanov for a spot in the St. Petersburg Open quarter-finals.