Cesc Fabregas has been accused of kicking off the post-match melee between Chelsea and Tottenham players on Monday night.
According to the Daily Express, eye witnesses say that Fabregas was seen slapping more than one Spurs player and a member of staff around the groin region as they left the Stamford Bridge pitch.
The behaviour from the Spaniard sparked strong reactions which boiled over after a dramatic encounter which ended 2-2, ending Tottenham's title hopes.
The brawl continued down the tunnel and will now be investigated by the FA as ugly scenes threatened to completely mar the occasion which saw Leicester City crowned as Premier League champions.
Both clubs are facing fines for their involvement in the fracas while the incidences of the players directly involved, including Fabregas, Dembele, Costa and Erik Lamela for a stamp on Fabregas' hand, will also be looked at to see whether to not they deserve sanctions.