Arsenal appealed against the red card shown to Vermaelen in Saturday’s 2-0 victory over West Ham.
“At a Regulatory Commission hearing today, a claim for wrongful dismissal from Arsenal defender Thomas Vermaelen was dismissed,” read an FA statement.
“Vermaelen was shown a red card for denying an obvious goalscoring opportunity during Arsenal’s match against West Ham United on Saturday 20 March.
“He will now serve a one-match suspension with immediate effect.”
