Alexis joined Barca from Serie A outfit Udinese in 2011, and has scored 38 league goals in 88 appearances for the Catalan giants.
The 2013-14 campaign was his most productive, with 19 La Liga goals, and on Tuesday Bartomeu moved to dismiss speculation linking the Chile international with a move away from Camp Nou, with Juventus reportedly interested in bringing the forward back to Italy.
"He’s not for sale,"he told El Mercurio. "He has a contract with us and is an important part of the squad.
"I know nothing about interest from Juventus. No one has made an official offer.
"Sanchez has had a great season and, of course, will be a part of Barcelona next season as well."
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