See main article: 2021 Internazionali di Tennis Città di Trieste.
Carlos Alcaraz was the defending champion[1] but chose not to defend his title.
Tomás Martín Etcheverry won the title after defeating Thiago Agustín Tirante 6–1, 6–1 in the final.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "2021 Internazionali di Tennis Città di Trieste – Singles".
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