But how much do you know about our new star?
At just 25, he's already had a successful and eventful career, so we've prepared this handy briefing to bring you up to speed with the midfielder's story so far.
Fill in your knowledge of United’s new Portuguese playmaker below…
How old is Bruno Fernandes?
What shirt number will Bruno Fernandes wear at United?
Bruno will wear the no.18 shirt for Manchester United, inheriting the shirt recently vacated by Ashley Young. The Portugal midfielder revealed the reasons why he chose that number included his admiration for Paul Scholes, who also wore no.