Argentina Football Association president Julio Grondona has reiterated his dislike for Diego Maradona's choice of assistant coach.
Maradona, who was installed as coach on November 4, and Grondona have reportedly been in dispute over the selection of Oscar Ruggeri, and now the AFA boss has said he will take his differences with the 1986 World Cup winner "to the grave".
"I have a personal problem with Ruggeri, but I will take it to the grave," Grondona told Radio 10.
Grondona is unhappy with the way the differences are being played out in public.
"There are some people who act because of their capacity and others who lobby and appear in the newspapers," he added. "I am sure that Ruggeri is lobbying in the media.
"It is a lie that I didn't answer the phone when he called. I also called him and he didn't answer me. I left him a message saying 'men talk before crying' and I hung up."
The FIFA vice-president refused to reveal the reason for his disapproval of Ruggeri.
"I have always enjoyed working with people similar to me but I think I can't get along with him," he added to C5N television network.
"I like moderation and tranquility. I don't like violent things and I never wanted to step on anybody."