Erling Haaland scored a brace in Man City's Champions League game at Monaco on Wednesday night, but Pep Guardiola's men let the lead slip and came away with a 2-2 draw.
"It's not good enough," Haaland said about the performance.
"Of course I don't feel good we didn't win. We do something unnecessarily in the second half and we 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 and dominated much more. In the second half they took the lead much more and I don't think it is good enough.
"Every Champions League game is tough, look at last year when we went out. There are not many teams who have won their first two games."
