It was at the big clubs' meeting in Lisbon last week that Prestianni was accused of insulting Real Madrid's Vinícius Júnior.
"He starts talking badly, it's not acceptable, but that happens in football. But then he puts the shirt here (over his mouth) and says 'Vini' is a monkey five times," Paris Saint-Germain's Kylian Mbappé told El Chiringuito.
UEFA now announces that Prestianni will be suspended for the return match in Madrid on Wednesday, pending an ongoing investigation.
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