Carlo Ancelotti is reportedly suing Everton in London's high court - two years after leaving the Toffees for Real Madrid.
The Italian left Everton to take up the role of manager as Real Madrid in June 2021, after just 18 months at Goodison Park.
It has been reported by the Guardian that the manager made a claim against his former employers late on Friday.
The claim relates to 'general commercial contracts and arrangements' and is listed to be heard in the commercial court.
No further details were provided about the nature of Ancelotti's claim, but it will add more pressure on Everton's board who have battled with a number of financial issues across recent seasons.