Jose Mourinho was worried by his Chelsea side's lack of finishing prowess in the 1-1 draw at home to Rosenborg in their Champions League Group B opener.
Andriy Shevchenko's second-half header earned the Blues a point, after Mika Koppinen had given the Norwegian champions a shock lead at Stamford Bridge.
Mourinho said after the stalemate: "Of course I am alarmed. I am not happy.
"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 job.
"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.
"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.
"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. We could not score two goals in 20 chances and could not defend one single free-kick."