Andrew Rublev is obviously trending following a stunning performance at the much-talked-about Citi Open. Many of his enthusiasts wonder who his biological mother is.

Who is Andrey Rublev’s mother Marina Marenko?

At the Spartak Tennis Club, Marina Marenko the biological mother of Rublev works as a tennis coach.

In 2009, Marenko who had previously worked with tennis players like Anna Kournikova was awarded the Medal of the Order (For Merit to the Fatherland). She is also Anna Arina Marenko’s mother (also a tennis pro).

Andrey Rublev, the top seed, worked double duty on Friday (August 5) to advance to the Citi Open semifinals. He is now focused on capturing a record-tying fourth ATP Tour championship of the season this weekend.

The World No. 8 secured a meeting with Yoshihito Nishioka in the semifinals by following up a victory over Maxime Cressy earlier in the day with a (6-2, 6-3) victory over American J.J. Wolf.

Rublev won easily against Wolf in one hour and 18 minutes after not losing a set all week. He only gave up five games.

After a grueling( 7-6(5), 4-6, 7-5) victory in three hours and 35 minutes, the Japanese lefty increased his perfect ATP Head2Head record against Daniel Evans to 5-0.