Pedro Mendes feels the outcome at Fratton Park did not reflect the balance of second half play against Portsmouth on Monday.
The boys came out strongly from the break after being - in terms of clear chances created - put on the back foot during the first period and early openings came and went for Jermain Defoe and Anthony Gardner before Yakubu headed Pompey into a lead they didn't surrender.
"We expected to win the game and came here with confidence that we would," reflected a disappointed Pedro afterwards. "I don't think the result was really fair to us.
"We played not bad, but not very well and if we could have scored from one of the chances in the second half it would have been completely different.
"They had some chances in the first half but towards the end we started to push them back. We started the second half well and, from chances like that, we should have scored."
Pedro insists the team will now lift itself for the visit of Bolton to the Lane on Saturday.
"We didn't expect this result but, after a bad result, good teams make sure they don't lose twice."