Birmingham City owner Carsen Yeung is fuming after discovering unpaid bills worth £6 million.
The Mirror says Yeung, who paid £80m for the club earlier this month, has been annoyed further after being hit with a raft of invoices for transfers and agents' fees pre-dating his takeover.
He paid over the odds at £1 a share for David Sullivan and the Gold brothers' stake in Premier League City without getting full disclosure of the club's books.
And Far Eastern tycoon Yeung has now told Brum's new vice-president Peter Pannu, an ex-Hong Kong cop and barrister, to oversee a post-acquisition due diligence at St Andrews.
Pannu, 46, is together with City's lawyers going through Birmingham's finances from July 2007 onwards when Yeung bought his original 29.9 per cent stake for £15m to become the club's largest single shareholder.