Haaland scored twice to earn the point for City on Wednesday night.
“Every Champions League game is tough,” he declared after the game. “Look at last year we went out.
“Every single game is tough. Not many teams won their first two games and that’s how it is.
“Of course I don’t feel good. We didn’t win and we did something unnecessary in the second half and I don’t think we played good enough. We don’t deserve to win.
“We need more energy. We need to get at them more as we did in the first half, we dominated much more. In the second half they took the lead much more.”
However, Haaland also said: “I still think I’m involved in the game, doing movements and giving space to others. It’s not just about touching the ball.
“You can be involved in the game in many other ways. That’s my job. I did my job in the first half, in the second half I didn’t.
“I didn’t score, I didn’t finish the game.”