(Reuters) - Sheffield United have signed former Manchester United midfielder Ravel Morrison on a one-year deal following a trial period with the club with an option to stay longer, the newly promoted Premier League side said on Tuesday.

"Ravel is an undoubted talent and we are delighted that we have put together a deal that suits all parties. I've spoken to a number of people about him and it is clear that he has serious ability," said Sheffield United manager Chris Wilder.