Carson Yeung is asking for more time to complete his £50million takeover of crisis club Birmingham, according to reports.
But the Birmingham Mail claim Yeung, who bought a 29.9% stake in the club in July, wants to extend that deadline.
It is understood Yeung and his associates are struggling to raise the appropriate funds.
Sullivan has always said there will be no extension and, unless he undertakes a U-turn, it means Yeung could be forced to pull out of the proposed takeover.
It is the latest bombshell for Blues, who could be soon losing the services of manager Steve Bruce to Wigan.