On Friday, Atletico Madrid coach Diego Simeone's son Giovanni scored on his Argentina debut during a 3-0 beating of Guatemala in Los Angeles.
It marks the continuation of an impressive rise for the forward, who has 27 goals in 75 Serie A appearances over spells at Genoa and Fiorentina.
But Simeone says he would not consider signing his son.
"I'm excited to see him in the Argentina national team, what I feel for Argentina is inside me," he added.
"He's a guy who has everything to play with me, but I would never sign him.
"It is very difficult to have your child in the dressing room. For him, for the relationship."
Asked if his son could play for Atleti in the future, he replied: "If he takes a much more important role in five or six years we're talking about a different situation, he would be more protected.
"He's going about his career in the best way. Maybe one day I'm not at Atletico and he can come."