The 32-year-old has a contract until 2023 and is waiting for Tuchel to give him the green light.
Azpilicueta has not yet spoken on their pre-season tour of America but could feature in the final game against Arsenal in Orlando in the early hours of tomorrow.
Tuchel explained: “I am not sure I want to give Azpi what he wants. He understands it but he does not like it.
“At some point it is also about us and just make the comparison of how much we fought for Kalidou Koulibaly.
“He is a national player, he is the similar age as Azpi, a hugely important player.
“I don’t think so much about other clubs as I think about us. The full focus is on us and what we need and what we have in Apzi.
“I said to him many times that I can understand him on a personal level and career level. I can understand his point of view.
On whether this may affect Azpilicueta’s motivation, Tuchel replied: “Maybe now a bit tough because the other club is on him, permanently on him and causes distraction.
“But on the 1st of September, normally when things calm down and things are clear, I’m very convinced he could play on his highest level.”
Asked whether he was annoyed at Barca’s approach of a player under contract at Chelsea, Tuchel chuckled: “Maybe a little bit.”
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