Arsenal Sarandi were crowned Argentinian champions for the first time in their history on Sunday.
Arsenal, who take their name from the famous English side, won the Clausura thanks to their 1-0 home win against Belgrano in the final round of games.
They had been level on points with Buenos Aires outfit Tigre coming into the day, but Tigre squandered a one-goal lead as they were held to a 2-2 draw by Independiente.
Two of the country's most successful clubs, Velez Sarsfield and Boca Juniors, finished third and fourth respectively, but the day was all about Arsenal, who hail from the Sarandi district of Avellaneda, just to the south of the capital.
Coach Gustavo Alfaro, 49, has overseen another historic moment in the history of Arsenal, five years after leading the side to glory in the Copa Sudamericana, the second-tier continental competition.