The 2021 Sibiu Open was a professional tennis tournament played on clay courts. It was the tenth edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Sibiu, Romania between 27 September and 3 October 2021.
| 2021 Sibiu Open | |
|---|---|
| Date | 27 September – 3 October |
| Edition | 10th |
| Location | Sibiu, Romania |
| Champions | |
| Singles | |
 Stefano Travaglia | |
| Doubles | |
 Alexander Erler / Lucas Miedler | |
Singles main-draw entrants edit
Seeds edit
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| ITA
|
Stefano Travaglia | 98 | 1 |
 MDA
|
Radu Albot | 104 | 2 |
 SVK
|
Alex Molčan | 118 | 3 |
 BIH
|
Damir Džumhur | 129 | 4 |
 CZE
|
Zdeněk Kolář | 149 | 5 |
 SUI
|
Marc-Andrea Hüsler | 159 | 6 |
 AUS
|
Thanasi Kokkinakis | 183 | 7 |
 IND
|
Sumit Nagal | 185 | 8 |
- 1 Rankings are as of 20 September 2021.[1]
Other entrants edit
The following players received wildcards into the singles main draw:
Victor Vlad Cornea- Vlad Andrei Dancu
Petros Tsitsipas
The following players received entry from the qualifying draw:
Yan Bondarevskiy- David Ionel
Yshai Oliel- Ștefan Paloși
The following player received entry as a lucky loser:
Elmar Ejupovic
Champions edit
Singles edit
Stefano Travaglia def. 
Thanasi Kokkinakis 7–6(7–4), 6–2.
Doubles edit
Alexander Erler / Lucas Miedler def. 
James Cerretani / 
Luca Margaroli 6–3, 6–1.
References edit
- ^ "Rankings | Singles | ATP Tour | Tennis". ATP Tour.