Reading have have appealed Kaspars Gorkss' red card in Sunday's 3-1 win against Queens Park Rangers at Loftus Road.
The Latvian was sent off against his former club in the 71st minute of the Sky Bet Championship clash for a challenge on Junior Hoilett.
"After reviewing video footage of the incident, we have contacted the FA to notify them of our intention to appeal," a club statement read.
"We now have to make our submission with evidence by 1pm on Tuesday."
If the appeal fails, then Gorkss will miss matches against Blackburn, Yeovil,
Brighton and Leeds United, having already been sent off once this season.