CAIRO (AFP) - Fifa is to open a disciplinary investigation into Diego Maradona after the Argentinian coachs sexually-explicit, foul-mouthed rant following his teams qualification for the 2010 World Cup. Weve been left with no other option than to open a disciplinary investigation into the Argentinian team coach, said Sepp Blatter, head of Fifa , footballs world ruling body. Maradona rounded on his critics after Argentinas 1-0 win over Uruguay on Wednesday, a victory which saw the two-time world champions squeeze nervously into next years finals in South Africa. The 48-year-old, a sporting icon in Argentina after skippering the 1986 World Cup winning team, enjoyed a honeymoon period at the start of his coaching reign before the knives began to be sharpened. He was widely pilloried for the record 6-1 World Cup qualifier defeat in Bolivia and his relationship with the countrys soccer-obsessed sports media never recovered. Three more losses - against Ecuador, Brazil and Paraguay - threatened to dump Argentina out of the World Cup picture for the first time since 1970. And Maradona was in belligerent mood after the Uruguay match, telling journalists to suck it and keep sucking it, amid a torrent of other abuse. Later Friday, Maradona apologised to the worlds women, but refused to say sorry to journalists. I apologise to women, to my mother, to Argentinian women, to Uruguayan women and to women throughout the world. But only to them, not the others, Maradona told TyC Sports television. Blatter, who was in Cairo for the final of the under-20 World Cup, warned that Maradona might have fallen foul of Fifa regulations which could result in a fine of up to 29,400 dollars and/or suspension. Maradona had said late Thursday in Buenos Aires he said he had no intention of apologising for his outburst. I dont have to apologise. All I was doing was reacting to all those people who have spoken out against me. Thats as far as it goes, he told Radio Continental. Im not going to perform a u-turn. Everyone knows what has been said. It seems to me that a lot of journalists wanted the national team not to qualify for the World Cup finals. For me, thats anti-Argentine and is something I cant forgive.