The Brazilian was booked in Saturday's 1-0 win over Cesena, triggering a one-game ban, but Serie A said in a statement he would receive a further three-match suspension after television replays showed he punched Antonio Jimenez off the ball.
With eight games left, fifth-placed Lazio are two points behind Udinese in the fourth Champions League qualifying spot.
Serie A's statement also confirmed Inter Milan centre back Lucio would miss the potential title-deciding derby against AC Milan on April 2 because of a yellow card received in Sunday's 1-0 win over Lecce.
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