Thomas Sorensen's state of health holds the key to Championship strugglers Brighton succeeding with their bid to sign young Aston Villa goalkeeper Wayne Henderson in the January transfer window.
The former FA Youth Cup winner spent three months with Mark McGhee's Seagulls in the autumn and, although he had to return to Villa Park at the end of the loan period, initial negotiations were undertaken with a view to making the move permanent once the window was open again.
The two sides are yet to agree a price, but a complication has now set in following Sorensen's withdrawal from Villa's team at West Bromwich Albion on Monday.
Sorensen's absence, due to a virus, earned Stuart Taylor only his second start of the season, with Henderson thrust into duty for the first time on the bench. O'Leary will now not consider letting the young Irishman leave the club, at least until Sorensen is back in action.
"There is nothing doing at present and certainly not until Thomas Sorensen is well again," said a Villa source last night.
A further complication is that Villa already have another of their four goal-keepers, Stefan Postma, on loan at Wolverhampton Wanderers, where he has taken over as first-choice from another Villa old boy, Michael Oakes.
Postma's loan is due to expire after Wolves' trip to Millwall on January 21 and if Wolves fail to make any further progress in their attempt to sign him permanently, forcing his return to Villa, that could open the door to Henderson's departure.