Portsmouth CEO Andrew Cullen is resigned to losing Gavin Bazunu at the end of the season unless Pompey are able to gain promotion to the Championship.
The Republic of Ireland stopper has been the form keeper in League One this season since joining the south coast side from Manchester City on loan in August.
Firhouse native Bazunu has kept 12 clean sheets in 30 league games - the joint best in the league - and Pompey boast the third best defensive record in the league.