Hayden Mullins vowed Pompey will not throw the towel in on their Championship future despite the increasingly-bleak outlook.
The long-serving midfielder saw the Blues slump to the foot of the table after a 1-0 loss at Reading last night.
Pompey are now six points adrift of safety, with just 12 games left to save themselves from the drop to League One.
While plenty of supporters have already accepted relegation is now a foregone conclusion, Mullins insists the Blues players have not come close to accepting their fate.
And he still remains hopeful Pompey can climb out of trouble, despite the club’s off-field issues clearly hampering their hopes.
Mullins said: ‘We can’t let everything else going on creep into the dressing room.
‘We’ve got to keep fighting until it’s mathematically impossible to stay up.
‘We had a positive chat after the game and we will be ready to go again at Brighton on Saturday.
‘The trick is not to get too bogged down after a bad result.
‘You can’t dwell on it – you’ve got to move on quickly because it can all change within a couple of weeks.
‘We could be standing here having picked up six points after two games and things look totally different.
‘It would give everyone a lift if we can get that one win. You win one, then you win two and suddenly the table changes.
‘That’s all we can concentrate on at the moment.
‘The administrator and people like that have got to secure the club’s future. We’ve got to secure the team’s future in the Championship.
‘At the moment, it’s a tough ask but we won’t stop trying until we can’t do any more.’
Pompey’s destiny is still very much in their own hands, despite a seven-match winless run that has seen them slump to the foot of the table.
And Mullins is hopeful fixtures against some of the other sides struggling at the bottom of the table can yet give Pompey a platform to clamber away from danger.
Mullins said: ‘We know we still have a lot of the teams around us to play.
‘The trick is not to get cut too far adrift from the other teams down there.
‘We know we have to start picking up points quickly.
‘But I don’t think it makes that much difference going bottom. We knew that could have been the scenario after this game.’
Mullins was also thankful to another fine showing from the travelling Pompey fans, many of whom again stayed behind long after the final whistle.
The former West Ham man said: ‘It’s a great club with great support. The fans sang throughout the game and you can see how passionate they are about their club.
‘It means a lot to us and we will keep going for them.’