The two face-off this weekend.
Allegri said, "I have great esteem for Luciano.
"It is so funny and funny that sometimes we fight like last year. I am not a coach, I do this job by mistake I had to do another stuff.
"Luciano is very good, facing him is always a great challenge. He is one of the best, if not the best, to learn from.
"I think it's much more important to them than to us."
