Injury-jinxed midfielder Kleberson admits he has had difficulties adapting to life in Manchester on and off the pitch.
The Brazilian, currently in Peru for the Copa America, suffered a dislocated shoulder and a knee injury during a turbulent debut season at United which yielded only 13 starts.
Kleberson admits: " The first season in England was very difficult for me. Adapting over there was complicated and the injuries were a problem."
" I had some exciting moments in my first season in England. But I was injured twice and that put me back both at my club and with the national team."
However, the World Cup-winning midfielder remains optimistic ahead of the forthcoming campaign.
He said: " I´m gambling everything on next season. Now that I´ve been baptised in Europe, I´m dreaming of titles and making history."
Kleberson´s quotes were published in the Daily Star.