England midfielder Kieran Richardson has completed his move from Manchester United to Sunderland for an undisclosed fee.

The 22-year-old signed a four-year deal with the Wearsiders after successfully coming through a medical this morning.

He could now make his Black Cats debut in Wednesday's friendly with Darlington.

Sunderland manager Roy Keane played alongside Richardson during his new acquisition's five years at Old Trafford.

He told the club's website www.safc.com: "I'm delighted that we've been able to bring Kieran to Sunderland. Having worked with him in the past I'm well aware of what a good player and a good lad he is.

"He's ready for a fresh challenge and hopefully Sunderland will provide that for him."