Crystal Palace midfielder Jason Puncheon has been fined £15,000 and warned about his future conduct after admitting a Football Association charge for comments he made on Twitter in relation to his former manager Neil Warnock.
Puncheon, 27, posted a series of tweets - which he later deleted - following criticism of a penalty miss by Warnock, who had signed him on loan when manager at QPR in September 2011.
The FA charged Puncheon as a result and has now fined him for the tweets.
Police have arrested six men in connection with a brawl between rival fans of Championship football clubs last month.
Violence broke out between Brighton and Hove Albion supporters and Crystal Palace fans in London after the two clubs were involved in separate fixtures on November 10.
Officers from the Metropolitan Police Service's Public Order Investigations Team, working closely with colleagues in Kent, Surrey and Sussex Police, carried out the arrests at about 5am today.
Four of the men - aged 21, 23, 32 and 41 - were arrested in Sussex, while a 19-year-old and a 25-year-old were arrested in south London, police confirmed. They are currently being held at a south London police station on suspicion of violent disorder.
The investigation was launched after violence broke out in the King's Cross area, the Seasiders having drawn 3-3 at Wolverhampton Wanderers and the Eagles securing a late 2-1 victory at Peterborough United.