The 2021 Monterrey Open (also known as the Abierto GNP Seguros for sponsorship reasons) was a women's tennis tournament played on outdoor hard courts. It was the 13th edition of the Monterrey Open and a WTA 250 tournament on the 2021 WTA Tour. It took place at the Club Sonoma in Monterrey, Mexico, from 15 to 21 March 2021.[1]
| 2021 Monterrey Open | |
|---|---|
| Date | 15 – 21 March |
| Edition | 13th |
| Category | WTA 250 |
| Draw | 32S / 16D |
| Prize money | $235,238 |
| Surface | Hard |
| Location | Monterrey, Mexico |
| Venue | Club Sonoma |
| Champions | |
| Singles | |
 Leylah Annie Fernandez | |
| Doubles | |
 Caroline Dolehide / Asia Muhammad | |
Champions
Singles
Leylah Annie Fernandez def. 
Viktorija Golubic, 6–1, 6–4.
This was Fernandez's first WTA tour title.
Doubles
Caroline Dolehide / Asia Muhammad def. 
Heather Watson / 
Saisai Zheng 6–2, 6–3.
Points and prize money
Point distribution
| Event | W | F | SF | QF | Round of 16 | Round of 32 | Q | Q2 | Q1 |
| Singles | 280 | 180 | 110 | 60 | 30 | 1 | 18 | 12 | 1 |
|---|---|---|---|---|---|---|---|---|---|
| Doubles | 1 | — | — | — | — |
Prize money
| Event | W | F | SF | QF | Round of 16 | Round of 32 | Q2 | Q1 |
| Singles | $29,200 | $16,398 | $10,100 | $5,800 | $3,675 | $2,675 | $1,950 | $1,270 |
| Doubles* | $10,300 | $6,000 | $3,800 | $2,300 | $1,750 | — | — | — |
*per team
Singles main draw entrants
Seeds
| Country | Player | Ranking1 | Seed |
|---|---|---|---|
| USA | Sloane Stephens | 44 | 1 |
 ARG | Nadia Podoroska | 46 | 2 |
 CHN | Zheng Saisai | 48 | 3 |
 CZE | |||
 GBR | Heather Watson | 64 | 5 |
 RUS | Anna Blinkova | 70 | 6 |
 ESP | Sara Sorribes Tormo | 71 | 7 |
| USA | Ann Li | 72 | 8 |
 JPN | Nao Hibino | 79 | 9 |
- 1 Rankings as of 8 March 2021.[2]
Other entrants
The following players received wildcards into the main draw:
The following player received entry into the singles main draw using a protected ranking:
The following player received entry as a special exempt:
The following players received entry from the qualifying draw:
The following players received entry as lucky losers:
Withdrawals
- Before the tournament
Victoria Azarenka → replaced by 
Jasmine Paolini
Marie Bouzková → replaced by 
Kristína Kučová- Coco Gauff → replaced by
Varvara Gracheva 
Polona Hercog → replaced by 
Nina Stojanović
Ons Jabeur → replaced by Anna Karolína Schmiedlová- Johanna Konta → replaced by Tamara Zidanšek
Danka Kovinić → replaced by Harriet Dart
Magda Linette → replaced by Martina Trevisan
Ajla Tomljanović → replaced by Zhu Lin
- During the tournament
- Kaja Juvan (Covid-19 illness)
Doubles main draw entrants
Seeds
| Country | Player | Country | Player | Rank1 | Seed |
|---|---|---|---|---|---|
| USA | Desirae Krawczyk |  MEX | Giuliana Olmos | 76 | 1 |
| USA | Caroline Dolehide | USA | Asia Muhammad | 82 | 2 |
 NED | Arantxa Rus |  SLO | Tamara Zidanšek | 121 | 3 |
| ESP | Lara Arruabarrena |  AUS | Ellen Perez | 135 | 4 |
- Rankings as of March 8, 2021.
Other entrants
The following pairs received wildcards into the doubles main draw:
Withdrawals
- Before the tournament
- Marie Bouzková /
Sara Sorribes Tormo → replaced by Paula Kania-Choduń / Katarzyna Piter - Anna Kalinskaya / Viktória Kužmová → replaced by
Greet Minnen / Ingrid Neel
- During the tournament
- Anna Blinkova /
Nadia Podoroska (right hip injury)
Retirements
- Greet Minnen / Ingrid Neel (gastrointestinal illness)