Western Sydney Wanderers centre-back Aritz Borda is set to miss the next three A-League matches including Saturday's derby for striking Melbourne City's Bruno Fornaroli.
Borda was sent off in the 30th minute of the Wanderers' 1-0 loss to City on Friday night he raised his forearm into Fornaroli's head off the ball.
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On Monday, Football Federation Australia's Match Review Panel (MRP) determined Borda had committed the offence of "assault on a player" and proposed a suspension of three games.
The penalty will see Borda miss Western Sydney's games against Sydney FC, Newcastle Jets and Brisbane Roar.
The Spanish defender has until midday on Tuesday (AEDT) to appeal the sanction.
The MRP also decided on a one-match ban for Wellington Phoenix striker Roy Krishna after his red card against Perth Glory last week.