Juve blew a 2-0 lead to lose the game after Milan scored three goals in six minutes.
“I think our first 60 minutes were world class. We were in total control and had this blackout. There's not even much use thinking too much about it, because we have another game in three days," Sarri told DAZN.
“We had a total blackout for 15 minutes. It has happened to other teams in this period. We have to take the positives from the game, which are that we were in total control for an hour.
“It's usually not even possible to find the reasons for these inexplicable blackouts."
However, it's not the first time Juve have struggled with mental strength once they concede a goal.
“We had some bad performances and quite rightly lost them, but this is not the case now. We played well this evening. I've seen many other teams have similar blackouts lately, because it's an unusual situation to be playing and training in these temperatures, with so many games close together.
“Sitting here trying to over-analyse it or put ourselves on trial could be counter-productive and make us lose all the good work we've done so far.
“It's completely different to the defeats against Verona and Napoli, so we have to focus on the next match. This is a team that has excellent football in its capabilities and that is what we need to build on."