Mendoza, 47, was a founding partner of the Rosario architecture firm Amascuatro with Ariel Benvenuto, a high school classmate who survived the attack in New York.

Mendoza was a big sports fan, and a longtime supporter of the Newell’s Old Boys soccer club, which vies with Rosario Central to be the most popular team in the central Argentine city.

As a child, he played soccer at the Renato Cesarini school, which is dedicated to training players mainly from Santa Fe province, where Rosario is. Javier Mascherano, a midfielder for Barcelona, trained there, and Argentine national team coach Jorge Sampaoli was an instructor.

As a teenager, Mendoza discarded his dream of being a professional soccer player and turned to rugby. He played for the Duendes club and was a coach there until a year ago.

Mendoza was married with three children.

A friend, Cesar Lagostino, who also played at Renato Cesarini, remembers Mendoza for his passion for athletics, and for architecture.

“Always a lover of sport and of his profession,” Lagostino said.

“I remember him as an honest person, among those who deserve to stay in this world,” the friend added. “Generous and calm. I do not remember having seen him in anything violent.”