Arsenal midfielder Jack Wilshere was handed a two-match suspension after he admitted a misconduct charge over an offensive hand gesture made towards Manchester City fans.
Wilshere was caught by television cameras raising his middle finger at City fans during the second half of Arsenal's 6-3 defeat at Eastlands on Saturday.
Although the incident was missed at the time by referee Martin Atkinson and his officials, the English Football Association was able to retrospectively implement disciplinary proceedings against the player on Thursday under a new pilot scheme for 'not seen' incidents in Premier League matches.
Arsenal submitted mitigating circumstances to the governing body, arguing the length of the punishment is excessive, but those submissions were rejected and so Wilshere will now miss both the crucial clash against title rivals Chelsea on December 23 as well as the Boxing Day trip to West Ham.
A statement from the FA read: "Arsenal's Jack Wilshere has been suspended for two matches by an independent regulatory commission.
"Wilshere was charged by the FA with making an offensive and/or insulting and/or abusive gesture during the fixture between Manchester City and Arsenal at the Etihad Stadium on Saturday 14 December.
"The incident was not seen by match officials, but was caught on video.
"Whilst admitting the charge, Wilshere claimed the standard sanction for this offence was clearly excessive. The commission rejected this claim and the two match suspension will commence with immediate effect."
In December 2011, Liverpool striker Luis Suarez was suspended for one match, fined £20,000 and warned as to his future conduct after he made a gesture to home fans as he walked off the pitch following a 1-0 defeat at Fulham.
However, a precedent had been set from earlier this season when a two-match suspension was handed out to Blackpool winger Tom Ince after he was retrospectively charged in relation to a gesture towards a match official in a Capital One Cup tie against Preston.