Former Arsenal defender Nelson Vivas has resigned as boss of Argentine first division club Quilmes after attacking one of his own fans in the stands.
At the end of Quilmes' 1-1 draw at home to Atletico Rafaela on Friday, Vivas went into the stands and landed three punches on the fan - a club member who he said had been insulting him.
"I'm not a violent person but I realise that's not the image a trainer should give," Vivas told reporters.
Club President Anibal Fernandez told Radio La Red that Vivas had gone too far.
"He came to my office and handed in his resignation. He knows he put his foot in it and realises the situation is uncomfortable for the team and regrets his actions," he said.
"We're trying all means to curb violence (in football in Argentina) and he can't commit such an error."
Vivas made 69 appearances for the Gunners after signing in 1998 before moving on three years later. His career also took in spells at Celta Vigo and Inter Milan.
The 44-year-old, who took charge this season in his first job as a head coach, leaves Quilmes in 16th place in the Inicial championship with 14 points from 12 matches.
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