The French midfielder was accused of elbowing Stoke defender Ryan Shawcross in the Ewood Park team’s 3-1 defeat to The Potters at the weekend, which went unnoticed by the officials at the game.
The act of violence occurred in the ninth minute of the Lancashire club’s loss, which saw Rovers drop back to the bottom of the Premier League table.
The incident was picked up by the FA when reviewing video footage however, and the 22-year-old was contacted with a case to answer.
Nzonzi pleaded guilty to the charge, and will now serve the mandatory three match suspension from all fixtures.
He was absent for Blackburn’s Carling Cup quarter final against Cardiff on Tuesday night, and will also miss Premier League clashes with Sunderland and Swansea.
The news will be a blow for under pressure boss Steve Kean, who will know the importance of picking up points in the next two league games, especially given the fact that they are against other teams in the bottom half of the table.
By Gareth McKnight