The Blues are interested in signing the Foxes defender.
In March, Fofana signed a two-year extension with the club. He has a deal until the year 2027.
Manchester City's Nathan Ake and Sevilla's Jules Kounde have both been tried on by the Blues, but they have not been able to come to an agreement.
Tuchel admits he is annoyed with Barcelona over their pursuit of Azpilicueta.
The 32-year-old has a year left on his contract and wants to return to his native Spain with Barcelona.
Tuchel doesn't know if he wants to give Azpilicueta what he wants, and thinks that Barcelona have underestimated the defender.
Tuchel said that he might have been annoyed by the Spanish giants' pursuit of Azpilicueta.
Tuchel was unsure if he would give Azpi what he wanted.
It is about what we want. I compared how much we fought for the national team player with his age.
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He is an important player for Napoli but he is not the captain of the team. I think he's at the same level as Barcelona don't think so. I don't know if I should give him what he wants or not.
We don't pay a lot of attention to other clubs. What we need is what the focus is on. I said it to him and he said it to me as well. I am also involved in giving him what he wants. I want to do what's best for the club.
He understands that he doesn't like it, but he doesn't like it very much. The other club is always on him. When things calm down, he can play his best.
The transfer window will close at 11pm on September 1st.
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