2023 Challenger AAT

The 2023 Challenger AAT Legión Sudamericana was a professional tennis tournament played on clay courts. It was the second edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Buenos Aires, Argentina between 24 and 30 April 2023.

2023 Challenger AAT
Date	24–30 April
Edition	2nd
Surface	Clay
Location	Buenos Aires, Argentina
Champions
Singles
Thiago Seyboth Wild
Doubles
Francisco Comesaña / Thiago Seyboth Wild

Singles main-draw entrants

Seeds

Country	Player	Rank1	Seed
ARG	Andrea Collarini	181	1
ARG	Thiago Agustín Tirante	185	2
ITA	Luciano Darderi	188	3
ARG	Juan Pablo Ficovich	197	4
ARG	Genaro Alberto Olivieri	205	5
DOM	Nick Hardt	221	6
ARG	Mariano Navone	227	7
BRA	Thiago Seyboth Wild	231	8

• ¹ Rankings are as of 17 April 2023.

Other entrants

The following players received wildcards into the singles main draw:

• Alex Barrena
• Alejo Lorenzo Lingua Lavallén
• Lautaro Midón

The following players received entry into the singles main draw as alternates:

• Pedro Boscardin Dias
• Gonzalo Lama
• Juan Bautista Otegui

The following players received entry from the qualifying draw:

• Valerio Aboian
• Tomás Farjat
• Gustavo Heide
• Conner Huertas del Pino
• Mariano Kestelboim
• Matías Zukas

The following players received entry as lucky losers:

• Wilson Leite
• José Pereira

Champions

Singles

Main article: 2023 Challenger AAT – Singles

• Thiago Seyboth Wild def. Luciano Darderi 6–3, 6–3.

Doubles

Main article: 2023 Challenger AAT – Doubles

• Francisco Comesaña / Thiago Seyboth Wild def. Hernán Casanova / Santiago Rodríguez Taverna 6–3, 6–7^(5–7), [10–6].