Christophe Berra insists Wolves did not under-estimate the threat of Portsmouth following the 1-0 defeat at Molineux.
Portsmouth headed to the Black Country on Saturday having lost their opening seven Premier League games of the season, but secured the points thanks to Hassan Yebda's first-half effort.
Wolves were denied a penalty and also had late chances to score an equaliser, but were unable to prevent a third successive loss in all competitions.
Berra is adamant there was no complacency within the squad ahead of the game and is not concerned by Wolves' position of 16th in the table.
"I wasn't surprised how good they were," said Berra. "They are not in the Premier League for nothing. They've got quality players. We didn't expect anything less from them.
"It's not like we came here thinking 'this is going to be an easy game'. That is so far from the truth. It just never happened for us. We've only played badly once this season.
"There are going to be good and hard times ahead. We never came up from the Championship thinking it was going to be easy. We knew when we came up we would be one of the favourites to go down.
"It is going to be right to the death. It's only eight games. We could go on a run and win three or four in a row. Football is a crazy game."