Michael Appleton was left seething by his lacklustre men as they fell to defeat at Coventry today.
Appleton believed his men lacked the same energy they performed with against Birmingham as they went down to a 2-0 loss at the Ricoh Arena.
The Pompey manager was angered with his men’s display and was at a loss to explain why they didn’t deliver.
He insisted the problems surrounding the club were not a valid excuse for them to use.
The Blues had their chances through the likes of Luke Varney, Joel Ward and Chris Maguire but failed to build on the 4-1 win on Tuesday.
Pompey are now six points from safety going into Tuesday’s meeting with Hull.
Appleton believes it will be the next two games which define what happens with eight games left this season.
He said: ‘It was disappointing.
‘We didn’t start well and I think we lacked that bit of energy.
‘We can’t use what is happening around the club as an excuse. We have to perform better.
‘Too often we made the wrong the choices.
‘But we have two home games coming up. I’ve said all along that they are going to be crucial.’