Inter Milan president Massimo Moratti was angry with his players after last night's 2-1 derby defeat to AC Milan.
"They were fairly blocked psychologically in the first half, but after going 2-0 down that freed them and they were able to play," said the patron.
"It's a shame, as we weren't focused on the task at hand and we could have changed the result in what proved to be a classic hard-fought derby."
This result and Roma's 3-0 victory away to Sampdoria closes the gap to just three points with two rounds remaining.
"We have already been three points in front before. I think at this stage of the season nerves are bound to hit both teams," added Moratti.
"I was in all honestly focusing on the derby rather than any Scudetto celebrations. I was disappointed we waited too long to get going in the first half."