Fulham won 3-0 thanks to goals from Ryan Sessegnon, Harry Wilson and Yerson Mosquera's own goal. Wolves' Emmanuel Agbadou was sent off in the first half.
Pereira said afterwards, “I’m disappointed today. I’m not proud of my wok, of our work, because I don’t know why. I don’t know if it’s because mentally, we put a lot of energy in the last game against Chelsea until the last minute.
“But what I realised today was a very difficult game for us, tactically, technically, physically. We played maybe one of the worst games that we’ve played. Even with 11 against 11, since the first minute the energy to move, the offensive dynamic, and the energy to press was not there.
“After five minutes, I started to realise that something is missing today. But the game was balanced, because even then, they were not playing in a high level. But after the goal, we tried to do something, but not in our level. After the red card, it was very difficult for us.”
Pereira offered a brutally honest assessment in his post-match media conference.
He said, “I’ve tried everything. We started the last game against Chelsea in 4-3-3, and after we realised that in 4-3-3 we were not defending in our level and we were not playing in our level. I changed the system and we were able to play in the second half.
“The second half was very good, in my opinion, and today we started as we finished the last game, but the dynamic was not there. Maybe because we played three games in a short space of time, so I tried to change some players from the last game.
“I changed a lot of players for this game to try to have energy to play against Fulham, but we didn’t play at our level today.”
Pereira added, “I’m trying everything. I’m trying everything to mentally keep the team in conditions to compete. I had very good feelings from the last game, especially the second half, but I don’t think two days was enough to recover for this game. But it’s my responsibility.
“I’m not a manager to put the responsibilities on the players, but together, we need to have a talk, and to assume the responsibilities together as a group because we cannot accept this level that we played today.”