Monaco coach Leonardo Jardim said Radamel Falcao's missed penalty changed his side's 5-3 defeat to Manchester City on Tuesday, but warned that their Champions League tie is "far from over."
The Ligue 1 leaders were already 2-1 up and it could have been 3-1, but Falcao sent a poor effort from the spot into the grasp of City keeper Willy Caballero.
City responded with an equaliser eight minutes later and went on to score three more times, providing a two-goal advantage ahead of the second leg on the Cote d'Azur.
But Jardim said he was remaining optimistic that Monaco were still in the tie.
"I think the first thing that I can say is that this game was perhaps one of the most exciting games of the Champions League this season, exciting for the supporters," Jardim said in his postgame news conference. "It was a great game for the supporter. I imagine everyone was happy to witness such a spectacle.
"I think Monaco played a great game. I have congratulated my players. We made a couple of errors in defence that we were punished for and I think the real key to this game was when we could have gone 3-1 up.
"We work hard to put on a show because we are passionate about football and we want to please the fans. Scoring three goals here at Manchester City is a really good show, a fantastic game.
"We've got 90 minutes to go, playing at home, so it's far from over. Anyone going home or sitting at home watching that game has seen a really great game."