A furious Erling Haaland claimed Manchester City lacked energy after failing to win their fifth consecutive away game in the Champions League.
Eric Dier scored a controversial 90th-minute equaliser from the penalty spot, a decision that left Pep Guardiola seething after Nico Gonzalez’s high boot had caught the ex-Tottenham defender.
But Haaland, who scored both of City’s goals on the night, refused to make excuses for the 2-2 draw.
'Of course it doesn't feel good, we didn't win. We did things unnecessarily in the second half and I don't think we played good enough, we don't deserve to win and that's why,' he said during his post-match interview.
Asked what was missing from the performance, Haaland continued: 'Energy, we need more energy. We need to get at them more as we did in the first half.
'We dominated much more and now in the second half, they took the advantage more and I don't think it's good enough.'
Erling Haaland, pictured holding his Player of the Match award, could not hide his fury after Monaco twice came from behind to draw 2-2 with his Manchester City side on Wednesday
The Norwegian furiously labelled Man City's performance against Monaco 'not good enough'
Eric Dier coolly slotted home a late and controversial penalty to deny City the important win
The match reached boiling point after Monaco were awarded their late penalty, which Dier smartly converted by sending Gianluigi Donnarumma the wrong way.
Players and staff were embroiled in a brawl as referee Jesus Gil Manzano was told to go to the monitor by VAR before awarding a penalty.
Guardiola remonstrated with the fourth official Jose Luis Munuera at full time and has history in this competition with Spanish referees after run-ins with Antonio Mateu Lahoz in the past.
On whether City were unfortunate to concede the late spot-kick, Haaland added: 'I didn't see it again. If you kick someone in the face I guess it's a penalty. But I don't know, I didn't see it.
'Every Champions League game is tough, look at last year - we went out. So yeah, every single game is tough and there aren't many teams who won their first two games and that's how it is.'
Haaland opened the scoring in the 15th minute with his first touch of the ball on the night, before Monaco's Jordan Teze levelled terms with a spectacular strike from outside the area three minutes later.
The spot-kick was awarded after Nico Gonzalez made contact with Dier in the penalty area
Players and staff were embroiled in a brawl as the referee was told to go to the monitor by VAR
Pep Guardiola's side sit eighth in the Champions League group phase after two matches played
The Norwegian doubled his tally for the evening just before the break to fire City back ahead, rising highest to head the ball with precision past Monaco goalkeeper Philipp Kohn between the sticks.
Still reeling from the draw, Haaland switched focus to his own performance and said: 'I still think I'm involved in the game (despite a lack of touches), doing off ball movements and giving space to others, it's not all about touching the ball if you are involved in the game or not.
'I think you can be involved in the game many other ways and that's my job. I did my job in the first half and the second half I didn't.
'Of course I didn't (do my job), I didn't score and finish the game. So no.'