Arsenal have lost their appeal against the red card shown to David Luiz on Tuesday.
Luiz will now miss Saturday’s trip to Aston Villa.
The Brazil defender was handed the straight-red dismissal following an apparent coming together with striker Willian Jose inside the area.
Arsenal went on to lose the game 2-1 in the Midlands to see their Premier League season take another setback.
After the game, manager Mikel Arteta confirmed they would appeal the decision.
However, on Thursday afternoon the Gunners took to their official website and social media accounts, to let supporters know that the FA would not be overturning the call.
“We have worked really hard to overturn David Luiz’s red card.
“We presented our case to the FA but are disappointed that our appeal has been unsuccessful.
“We accept the FA’s decision and continue our preparations for Saturday’s match against Aston Villa,” a statement read.