The former Everton boss refuses to be paid off on the cheap.
The Spanish manager was sacked last month as the Merseyside club finished 11th in the Premier League table for a second successive season; perhaps another underachievement given the quality Martinez had at his disposal.
Ronald Koeman was named as his successor this week, but Everton - who paid £5 million in compensation to Southampton for the Dutchman, according to The Telegraph - are yet to agree a figure with the Spaniard following his dismissal.
And The Mail have reported that the 42-year-old wants a £10 million payoff, having had a little over three years to run on his existing deal, which the report suggests was earning him roughly £3.5 million per year.
The English outlet goes on to claim that a compromise was initially expected to be made between both parties, but now an independent hearing will be held as Martinez eyes a hefty pay out.
If he gets it, it'll mean that the Toffees have had to pay out some £15 million to hire Koeman and fire Martinez.