Already an international regular for the United States at the age of 18, Pulisic has made a rapid rise to prominence.
The winger played 29 Bundesliga matches last season, his first full campaign with Dortmund's first-team squad.
Pulisic insisted last month that a move from Dortmund to rivals Bayern Munich – following the trend set by Robert Lewandowski, Mario Gotze and Mats Hummels – was not in his plans.
And following reports linking him with a move to England, Pulisic has again reiterated his commitment to BVB.
"I am very happy in Dortmund.," he told Sport Bild. "I have read about it [Liverpool interest], but what can I say about it? I am fully focused on the start of the new season.
"I want to be very clear, I am not thinking about a transfer. I only signed a new deal until 2020 at the start of the year.
"I established myself at a European top club in Dortmund last season, which was always my dream when I was a little kid."
Pulisic, who can also play as a central attacking midfielder, hopes to make even more of a mark with Dortmund this season, with the club now under new management after Petr Bosz's arrival.
"My next goal is now to play regularly.," he said. "I do not have a favourite position. I would like to think that I am very versatile in attack
"Peter Bosz sees me as a wide player and I can agree with that."