Ritchie De Laet called on Pompey to get their heads focused for the rest of the campaign at their training camp.
The on-loan defender believes his team weren’t in the right place mentally, which led to defensive lapses in the 2-1 loss to Burnley on Tuesday.
Pompey produced their worst home performance of the season against the Clarets, with poor defending to blame once again as Steve Cotterill’s side made it 18 goals conceded in their past seven matches.
De Laet wants an inquest into that at their base in the Canary Islands and demanded they put it right at QPR on Tuesday.
He said: ‘We might need this training camp abroad to stick our heads back together again.
‘Even if we are away, we still need to think about the next game. QPR away is a big one.
‘We need to talk about the game against Burnley. We need to talk about it because we can’t just leave it.
‘We need to look back at the game, see what happened and put it right.’
De Laet has taken heart from the attacking quality he has seen since arriving from Manchester United.
The 22-year-old feels his team may be more comfortable on the road at present.
Pompey have produced big performances against strong sides away.
And de Laet feels that can be the same at Loftus Road.
He said: ‘There were positives in the Burnley game. We need to take them out and take them into the QPR game because it’s not going to be an easy game.
‘If we play away we almost seem to play with a little more freedom. I’ve played two home games and one away and it looks like we play better away at the moment. That’s not acceptable, though.’