Jose Mourinho admitted Chelsea were flat against Norwich because of their midweek Champions League elimination.
The Blues were well short of their best in their final home game of the season – a 0-0 draw that more or less secures third place but also spells the end of any lingering title hopes.
“I think when you lose a Champions League semi-final and you know that you are not realistically in the title race, I think especially the mental energy disappears, the focus disappears,” he said.
“You start thinking more about what next than on what you have to do now and that was reflected in the first half. The first half was the consequence of that state of mind.
"It was a lazy first half. Slow, no pressure, with the midfield never arriving to press an opponent. The passing was very slow.
“In the second half, we were much, much better – enough to win, but we didn't.”
The Chelsea boss added: “The second half was a bit of a contradiction. They needed a win to survive and they didn't try and we needed one point to finish third and we risked everything.
“In the last part of the game, some pragmatic people with a calm view could ask themselves: 'What are they doing? They need one point to finish third.
'They need one point to secure a Champions League spot and they are taking off Matic and putting on Torres and trying to win and to gamble.'
“We know we needed one point but at the same time, we wanted to finish by winning at home.
"We wanted to give the fans a better feeling by finishing the season winning and in the second half, we deserved that.”