Bruno Guimaraes says he signed for Newcastle because he believes the club can one day win the Champions League and become a significant force in world football.
Guimaraes was also linked with Arsenal but says he is excited by Newcastle's potential following their Saudi Arabian-backed £305m takeover.
"This is a club that is going to be a big power in world football," he said.
"This is an historic club with a great tradition and a beautiful history, I have no doubts about my decision to come to Newcastle."
Premier League survival is the objective in the short term with Newcastle currently in the relegation zone.