The FA Premier League has launched a formal inquiry into claims that Chelsea made an illegal approach for Arsenal and England full-back Ashley Cole.
Reports have claimed that Cole met with Chelsea chief executive Peter Kenyon and manager Jose Mourinho at a London hotel to discuss a potential move.
Chelsea have not confirmed or denied the story and league officials are now to carry out a thorough investigation, having received further information from the News of the World concerning the allegations.
Now Arsenal have told the Premier League that they want to get to the bottom of the claims, fearing that their wealthy London rivals have `tapped up' one of their most prized assets.
A statement released today read: "The board of the FA Premier League convened today and have decided to launch a formal inquiry into allegations that Chelsea FC may have acted in a way so as to breach Premier League rule K3 regarding approaches to players already contracted to another club."
Chelsea have also promised to give the Premier League any information requested of them.
With Arsenal pledging their support, the FA Premier League added in their statement: "The board is also pleased that Chelsea FC have given a similar undertaking."