ATP - Rain washed out Day 1 Eastbourne

Rain washed out all first round matches on Day One in Eastbourne.

2021 Viking International Eastbourne - an ATP 250 tournament, on Grass, in Eastbourne, United Kingdom, 21-26 June 2021.

Event not held last year due to COVID-19

2019 champion (not defending):

Taylor Fritz who defeated Sam Querrey 6-3 6-4

The following players withdrew after the main draw was published:

- Fourth seed Nikoloz Basilashvili, replaced by lucky loser Andreas Seppi 

Cameron Norrie was instated as ninth seed and moved in the draw to the place previously occupied by fifth seed Reilly Opelka.

Fifth seed Reilly Opelka was moved in the draw to the place previously occupied by Basilashvili and received the first round bye originally given to the Georgian.

- Cameron Norrie, replaced by lucky loser Norbert Gombos due to fatigue.

- Richard Gasquet, replaced by lucky loser Alastair Gray due to injury.

- Laslo Djere, replaced by lucky loser Max Purcell due to an ankle injury.

First round matches to be rescheduled:

- Lucky loser Max Purcell v qualifier James Duckworth

- Lucky loser Andreas Seppi v Yoshihito Nishioka

- Emil Ruusuvuori v Albert Ramos-Vinolas (7)

- John Millman v wildcard Jay Clarke

- Jo-Wilfried Tsonga v Egor Gerasimov 

- Alejandro Davidovich Fokina (6) v qualifier Mikael Ymer