Rafinha had opened the scoring in the sixth minute of the International Champions Cup, pre-season tournament before a brace from Thomas Muller (12, 27).
A second-half Chelsea resurgence saw Marcos Alonso pull a goal back shortly after the restart, while Michy Batshuayi netted with five minutes of the match remaining.
After the tie, Ancelotti admitted that they weren’t facing a completed Chelsea side, but nonetheless he was please with how his players took their chances.
It was also a welcome response after Bayern lost 4-0 at the hands of AC Milan last week.
He said: “These games in this period are not so real. Normally, Chelsea’s defensive organisation is really good but maybe today they had more problems and Conte was trying out different players.
“I am sure Chelsea will have great defensive organisation in the coming season but it’s only the pre-season and we did not want to spend too much energy pressing, so we made the most of our counter-attacking chances.”