# 2021 Eastbourne International – Men's singles

Alex de Minaur defeated Lorenzo Sonego in the final, 4–6, 6–4, 7–6$^{(7–5)}$, to win the men's singles tennis title at the 2021 Eastbourne International. It was de Minaur's fifth career ATP Tour singles title and his first on grass. Sonego was contesting in his second grass final to win his third career title.
Taylor Fritz was the defending champion from when the event was last held in 2019, but he withdrew before the beginning of the tournament after incurring a knee injury during the French Open.

## Seeds

The top four seeds received a bye into the second round.
* Gaël Monfils (second round)
* Alex de Minaur (champion)
* Lorenzo Sonego (final)
* Nikoloz Basilashvili (withdrew)
* Reilly Opelka (withdrew)
* Alejandro Davidovich Fokina (second round, retired)
* Albert Ramos Viñolas (first round)
* Alexander Bublik (quarterfinals)
* Cameron Norrie (withdrew)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| LL | Max Purcell | 1 | 6 | 1 | | | | | |
| 3 | Lorenzo Sonego | 6 | 3 | 6 | | | | | |
| 3 | Lorenzo Sonego | 6 | 3 | 6 | 3 | Lorenzo Sonego | 6 | 4 | 6$^5$ |
| | | | | | 2 | Alex de Minaur | 4 | 6 | 7$^7$ |
| LL | Kwon Soon-woo | 3 | 6$^2$ | | 2 | Alex de Minaur | 4 | 6 | 7$^7$ |
| 2 | Alex de Minaur | 6 | 7$^7$ | | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | 1 | G Monfils | 4 | 7 | 4 | | | | | | | | | | |
| LL | M Purcell | 6 | 3 | 7$^7$ | LL | M Purcell | 6 | 5 | 6 | | | | | | | | | | |
| Q | J Duckworth | 2 | 6 | 6$^5$ | | | | | | LL | M Purcell | 6 | 1 | 6 | | | | | |
| LL | A Seppi | 7$^7$ | 6 | | | | | | | LL | A Seppi | 4 | 6 | 4 | | | | | |
| | Y Nishioka | 6$^5$ | 1 | | LL | A Seppi | 6 | 6 | | | | | | | | | | | |
| | E Ruusuvuori | 6 | 6 | | | E Ruusuvuori | 2 | 3 | | | | | | | | | | | |
| 7 | A Ramos Viñolas | 4 | 3 | | | | | | | | | | | | LL | M Purcell | 1 | 6 | 1 |
| | | | | | | | | | | | | | | | 3 | L Sonego | 6 | 3 | 6 |
| | | | | | 3 | L Sonego | 6 | 6 | | | | | | | | | | | |
| | J Millman | 6 | 6 | | | J Millman | 4 | 2 | | | | | | | | | | | |
| WC | J Clarke | 3 | 2 | | | | | | | 3 | L Sonego | 6 | 7 | | | | | | |
| | J-W Tsonga | 3 | 4 | | | | | | | 8 | A Bublik | 1 | 5 | | | | | | |
| | E Gerasimov | 6 | 6 | | | E Gerasimov | 2 | 2 | | | | | | | | | | | |
| Q | M Kukushkin | 1 | 4 | | 8 | A Bublik | 6 | 6 | | | | | | | | | | | |
| 8 | A Bublik | 6 | 6 | | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| LL | N Gombos | 6 | 4 | 1 | | | | | | | | | | | | | |
| | A Popyrin | 4 | 6 | 6 | | A Popyrin | 7$^7$ | 5 | 3 | | | | | | | | |
| LL | A Gray | 2 | 6$^5$ | | Q | I Ivashka | 6$^5$ | 7 | 6 | | | | | | | | |
| Q | I Ivashka | 6 | 7$^7$ | | | | | | | Q | I Ivashka | 4 | 5 | | | | |
| | M Fucsovics | 7$^7$ | 3 | 7$^7$ | | | | | | LL | S-w Kwon | 6 | 7 | | | | |
| | A Bedene | 6$^3$ | 6 | 6$^3$ | | M Fucsovics | 6$^4$ | 7$^7$ | 3 | | | | | | | | |
| | | | | | LL | S-w Kwon | 7$^7$ | 6$^4$ | 6 | | | | | | | | |
| | | | | | | | | | | | | | | LL | S-w Kwon | 3 | 6$^2$ |
| 6 | A Davidovich Fokina | 7 | 6 | | | | | | | | | | | 2 | A de Minaur | 6 | 7$^7$ |
| Q | M Ymer | 5 | 1 | | 6 | A Davidovich Fokina | 6$^1$ | 0$^r$ | | | | | | | | | |
| WC | J Ward | 4 | 4 | | | V Pospisil | 7$^7$ | 0 | | | | | | | | | |
| | V Pospisil | 6 | 6 | | | | | | | | V Pospisil | 4 | 4 | | | | |
| | F Tiafoe | 3 | 6$^4$ | | | | | | | 2 | A de Minaur | 6 | 6 | | | | |
| WC | L Broady | 6 | 7$^7$ | | WC | L Broady | 3 | 4 | | | | | | | | | |
| | | | | | 2 | A de Minaur | 6 | 6 | | | | | | | | | |

## Qualifying
### Seeds

* Kwon Soon-woo (first round, lucky loser)
* Norbert Gombos (qualifying competition, lucky loser)
* Ilya Ivashka (qualified)
* Andreas Seppi (qualifying competition, lucky loser)
* James Duckworth (qualified)
* Mikael Ymer (qualified)
* Kevin Anderson (first round)
* Mikhail Kukushkin (qualified)

### Qualifiers

* James Duckworth
* Mikael Ymer
* Ilya Ivashka
* Mikhail Kukushkin

### Lucky losers

* Alastair Gray
* Max Purcell
* Andreas Seppi
* Norbert Gombos
* Kwon Soon-woo

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Kwon Soon-woo | 6 | 2 | 3 | | | | |
| WC | Alastair Gray | 4 | 6 | 6 | | | | |
| WC | Alastair Gray | 4 | 6 | 6 | WC | Alastair Gray | 3 | 6$^4$ |
| | | | | | 5 | James Duckworth | 6 | 7$^7$ |
| | Filip Jianu | 4 | 3 | | 5 | James Duckworth | 6 | 7$^7$ |
| 5 | James Duckworth | 6 | 6 | | | | | |

#### Second qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Norbert Gombos | 6 | 7$^7$ | | | | | |
| WC | Lui Maxted | 4 | 6$^4$ | | | | | |
| WC | Lui Maxted | 4 | 6$^4$ | | 2 | Norbert Gombos | 3 | 5 |
| | | | | | 6 | Mikael Ymer | 6 | 7 |
| | Geoffrey Blancaneaux | 6 | 2 | 1 | 6 | Mikael Ymer | 6 | 7 |
| 6 | Mikael Ymer | 1 | 6 | 6 | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Ilya Ivashka | 6 | 7$^7$ | | | | | | |
| Alt | John-Patrick Smith | 4 | 6$^3$ | | | | | | |
| Alt | John-Patrick Smith | 4 | 6$^3$ | | 3 | Ilya Ivashka | 6$^6$ | 6 | 6 |
| | | | | | | Max Purcell | 7$^8$ | 2 | 1 |
| | Max Purcell | 7$^9$ | 4 | 6 | | Max Purcell | 7$^8$ | 2 | 1 |
| 7 | Kevin Anderson | 6$^7$ | 6 | 3 | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Andreas Seppi | 6 | 6 | | | | |
| | Christian Harrison | 3 | 3 | | | | |
| | Christian Harrison | 3 | 3 | 4 | Andreas Seppi | 2 | 5 |
| | | | | 8 | Mikhail Kukushkin | 6 | 7 |
| | Nick Chappell | 2 | 3 | 8 | Mikhail Kukushkin | 6 | 7 |
| 8 | Mikhail Kukushkin | 6 | 6 | | | | |