Andrey Rublev Andrey Andreyevich Rublev (; born 20 October 1997) is a Russian professional tennis player. He has been ranked as high as world No. 5 in men's singles by the Association of Tennis Professionals (ATP), which he first achieved in September 2021 ...

was the defending champion, but chose to compete in

St. Petersburg Saint Petersburg, formerly known as Petrograd and later Leningrad, is the second-largest city in Russia after Moscow. It is situated on the River Neva, at the head of the Gulf of Finland on the Baltic Sea. The city had a population of 5,601, ...

instead.

Alexander Zverev Alexander "Sascha" Zverev (; born 20 April 1997) is a German professional tennis player and the current world No. 3. He has won 24 ATP Tour titles in singles and two in doubles, and has been runner-up at three Grand Slam (tennis)#Tournaments, ma ...

won the title, defeating

Frances Tiafoe Frances Tiafoe Jr. ( ; born January 20, 1998) is an American professional tennis player. He reached his career high at world No. 10 in singles on June 19, 2023, becoming the first Sierra Leonean American man to be ranked in the top 10 by the ...

in the final, 7–5, 6–4.

Seeds

Draw

Finals

Top half

Bottom half

Qualifying

Seeds

Qualifiers

Lucky loser

Qualifying draw

First qualifier

Second qualifier

Third qualifier

Fourth qualifier

References

External links

Main draw

Qualifying draw
{{DEFAULTSORT:2021 Erste Bank Open - Singles Erste Bank Open - Singles

2021 Singles 1 (one, unit, unity) is a number, numeral, and glyph. It is the first and smallest positive integer of the infinite sequence of natural numbers. This fundamental property has led to its unique uses in other fields, ranging from science to ...