Australia's former soccer player Harry Kewell stands with his wife, Sheree Murphy, as they attend a reception for Britain's Prince William and his wife Catherine, Duchess of Cambridge, at Government House in Canberra April 24, 2014.  [Photo/Agencies]

For 900,000 U.S. dollars per year, Kewell was required to attend 12 full production days for media and promotional days, make 20 two-hour and 10 four-hour personal appearances for FCA, sign hundreds of items, send messages to competition winners and drive a Jeep whenever possible.

Kewell's deal was brokered by Campbell who, according to FCA, " improperly used his position to gain advantage for himself, ( sports marketing company) ESP and/or Kewell."

The original statement of claim submitted to court also said the deal was boosted when Kewell signed for local A-League team Melbourne Heart in 2013. For that, Kewell was given 1520 U.S. dollars per month towards a rental property, assistance with school fees to a maximum value of 57,000 U.S. dollars per year, and eight return business class airfares between Australia and Europe annually.

Football Federation Australia is now investigating the contracts for breach of the A-League's salary cap conditions.

Campbell left FCA Australia in April 2013 to become an independent distributor of FCA vehicles in New Zealand.