Sesko moved to RB Leipzig this year from RB Salzburg, despite interest from United.
He told Transfermarkt: "The fact is that I haven't been very involved in these kinds of conversations, but I think it was better to come here. For me it was very important to go to a place where they play a similar style of football to Salzburg.
"I already knew what I had to do and didn't have to repeat the whole learning process."
However, Sesko admits the Premier League is a career ambition: "It would be nice to play there, but for now let's focus on the moment and then we'll see."