Mandic named Arnold as the source of the recent attack on the Socceroo striker by Robbie Slater in a newspaper column.

Speaking on Melbourne radio, Mandic blasted Arnold’s divisive nature and said he was the source of a story alleging that Scott Chipperfield had told Kewell to “eff off”.

Speaking to au.fourfourtwo.com through a Central Coast Mariners representative, Arnold is said to be denying the allegations.

It’s thought that Arnold like Mandic is reviewing his options regarding the allegations.

A Fox Sports source added: "Robbie has repeatedly said the source for his story was 'more than one PLAYER'."