Arsenal midfielder Jack Wilshere will find out next week the cost of his foul-mouthed anti-Tottenham chants during the FA Cup victory parade after being charged with misconduct by the Football Association.
Wilshere has until 6pm on June 10 to respond following formal disciplinary proceedings opened by the governing body, with an independent commission set to rule on the case which will have sanctions to impose a significant fine although a suspension is also a possibility.
On Sunday, the 23-year-old, who came through the Gunners' youth ranks, took to the microphone to mock the club's fierce rivals as the players celebrated on a stage outside the Emirates Stadium in the wake of their 4-0 victory over Aston Villa at Wembley.
In similar scenes to 12 months ago, Wilshere then proceeded to lead the massed ranks of Arsenal supporters in a chant which included expletives against Spurs, who again finished below their north London neighbours in the Barclays Premier League table.
Arsenal issued a swift apology from the studio presenter during their live in-house media broadcast of the event, while on Monday, Wilshere apologised if his actions had caused any offence and was spoken to by Arsenal staff about the issue.
However, after themselves having warned Wilshere following similar comments during the 2014 celebrations, it is understood the latest outburst prompted the formal disciplinary action from the FA.
"Jack Wilshere has been charged with misconduct in relation to Arsenal's FA Cup celebrations on Sunday 31 May 2015," a statement from the FA read.
"It is alleged his conduct in making and/or inciting certain comments during the club's open bus trophy tour was improper and/or brought the game into disrepute.
"The player has until 6pm on 10 June 2015 to respond to the charge."
Many thousands of Arsenal fans had braved the rain to cheer the squad as they went on open-top buses from the Emirates Stadium to Islington Town Hall, celebrating the club's record 12th FA Cup victory after successfully retaining the trophy.
As the players were later presented to supporters back at the stadium, Wilshere took the microphone and said: "I have one question, and one question only: what do we think of Tottenham?"... before adding: "And what do we think of s***?", then joining in as the crowd sang back: "We hate Tottenham and we hate Tottenham... we are the Tottenham haters."
Wilshere, who is set to join up with England this week for the June internationals, received support from fans, with the chair of the Arsenal Independent Supporters Association claiming the player's outburst showed that he "totally understands what it is to be an Arsenal supporter".
However, former Gunners striker Niall Quinn said Wilshere had "overstepped the mark".
While falling short of saying sorry for making the remarks, Wilshere used a Twitter post to apologise to anyone who had been upset by them.
"Sharing back2back Cup wins with so many amazing Gooners is a dream come true. Apologies if I upset or offended any of u with my celebrations," he wrote.
On the pitch, Arsenal are expected to return from their summer break a stronger unit as manager Arsene Wenger targets a sustained assault on the Barclays Premier League title following back-to-back FA Cup triumphs.
Arsenal are intent on improving the squad over the summer, with Chelsea goalkeeper Petr Cech one transfer target said to be keen to secure a switch across London to the Emirates Stadium.