Jose Mourinho admitted he is alarmed by Chelsea's failure to score goals but refused to blame his strikers after unfashionable Rosenborg held the Blues to a draw at Stamford Bridge.
Miika Koppinen stunned the home side with a 24th minute volley but Mourinho's blushes were spared by a second-half leveller from Ukrainian striker Andriy Shevchenko.
The Portuguese coach bemoaned his team's failure to score more than one goal despite creating a hatful of chances, but insisted they had to take collective blame for dropping two home points in their opening Group B game.
Mourinho declared: 'Of course I am alarmed. I am not happy.
'We cannot score goals and secondly I have no good news from the medical department. So I have to fight with these players to make the team the best possible.
'I am disappointed but the history of the game was simple - we had 20 chances and scored one goal. So maybe we need 40 chances to score two and 60 to score three.
'Our 20 chances were not enough to score two goals. It is not my strikers, it is my team. My team played against a team that in my opinion did its game. Like smaller teams do when they visit the better teams. They come here to defend and are organised.
'But Chelsea produced 20 chances and got one in the net. We can speak and speak and speak but we could not score more than one goal. Nobody is happy.'
Mourinho admits that qualifying for the knockout phase will have been made harder by their draw.
He added: 'This was the kind of game you have to win. The kind of game you have to win at home against the weakest team in the group. So it is not a good result.
'But we are not scared of the situation in the Champions League. Maybe it is now more difficult to be first and maybe we need four points against Valencia.
'I don't think it is a drama - for me the drama is that in the last three matches we have dominated games but scored just one single goal.
'Our defence conceded a goal from a set-piece where every player knows his responsibility. Somebody made a mistake but I am not going to tell you who.
'We could not score two goals in 20 chances and could not defend one single free-kick.'
The absence of midfielder Frank Lampard and Ivorian striker Didier Drogba is clearly telling.
The pair contributed more than 50 goals for the side last season but are missing through injury, and Mourinho does not expect them back for Sunday's crucial Barclays Premier League clash with Manchester United.
'I am getting no good news from the medical department,' he said. 'I don't think they will be back for Sunday.'
Rosenborg coach Knut Torum was delighted with his side's hard-earned point - especially after withstanding the second-half assault from the English side.
Torum said: 'We had a plan and were successful. But we were lucky to get the point. Chelsea had their chances and the last 20 minutes was power play from them.
'But a very big thanks to the boys. They all worked very hard. We got the point and the result we believed in ourselves.
'I don't think many people expected us to get a point. It is a very good start for us in the Champions League.
'Chelsea could have scored a goal or two more. But we knew we would have some opportunities ourselves. I was hoping we could score a goal from a free-kick and we did just that.
'We have a lot of strength in the air and we knew if got the ball in the right area, we could score from a set-piece.'