FIFA has opneed the biggest disciplinary investigation in its history as it looks into the violence that marred the World Cup play-off between Turkey and Switzerland earlier this month.

Turkey won the match 4-2 but Switzerland qualified for the finals on away goals having won the first leg 2-0. The match ended in chaos with players, officials and stewards involved in a brawl as they left the pitch.

Swiss player Stephane Grichting was hurt and was taken to hospital, while assistant Turkey coach Mehmet Ozdilek has resigned for his part in the violence.

“We have begun the enquiry in Zurich today which will involve interviewing more than 20 people, including the two national coaches, players, officials and technical staff from both countries,” said a spokesman for FIFA.

“In terms of scope it is the most voluminous disciplinary investigation in the history of FIFA.

“Because of the scale of the enquiry and the possible sanctions we have to ensure that legally everything is done exactly right,” added the spokesman.

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