Warsaw, Poland (CNN) -- European football's governing body opened disciplinary proceedings Saturday against Croatia over what it said was racist behavior by its supporters during a Euro 2012 match against Italy.

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Two FARE international monitors will attend each match during Euro 2012 to identify racist behavior and far-right banners.

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The participants also filed reports on their health, weight, eating habits, opinions, purchases and other personal information, so the researchers could match the phone data to relationships and behavior.

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"UEFA has opened disciplinary proceedings against S.S. Lazio for the improper conduct of the club's supporters (racist behavior) during the UEFA Europa League group stage match on Thursday 20 September between Tottenham Hotspur FC and the Italian side, " read a UEFA statement.

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UEFA, European soccer's governing body, imposed the two-match sanction as a result of repeated offensive behavior from the Lazio fans, including fascist salutes.

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"When I made a double fault, he gave me a notice for a wrong behavior on the court as if I was throwing the match, " Davydenko said.

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